3 Dimensional Services
from 3 Dimensional Services

Our forming and fabricating operations manufacture parts through stamping, laser processing, hydroforming, tube bending and waterjet cutting. Our stamping area, with presses from 20 to 7000 ton surpasses many production shops. We're well equipped to handle simple bends to complex tooling. We produce... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Prototype; Short Run Production
  • Certifications / Standards: QS-9000; ISO 9001
  • Company Information: 3 Dimensional Services Group are experts in bringing part concepts to reality and laying design challenges to rest. They design and build prototypes with manufacturing intent in mind, and they do it faster than you can imagine.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; EDM; CNC Fabrication; Punching; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
Accurate Metal Fabricating
from Accurate Perforating & Metal Fabricating

Accurate Metal Fabricating brings designs to reality with a full range of tooling technology and engineering expertise. Our technology includes punching, forming, perforating, welding, laser cutting and shearing. Our facility is filled with the latest equipment enabling us to fabricate and perforate... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Punching; Stamping; Welding
  • Company Information: Accurate Metal Fabricating is a full customer solution precision metal fabricator with the technology and expertise to support your production requirements.
  • Materials: Ferrous Metals
AEM-LLC
from AEM-LLC

AEM is known for providing a wide range of sheet metal fabrication and finishing services, including shearing, laser cutting, punching, forming, sheet rolling, tube rolling, tube bending, sheet bending, stamping, welding, CNC machining, CNC turning, powder coating, wet painting, and silk screening. [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Production
  • Certifications / Standards: ISO 9001:2000; ISO 14001
  • Company Information: AEM provides a wide range of sheet metal fabrication and finishing services, including laser cutting, punching, forming, sheet and tube rolling and bending, stamping, welding, CNC machining and tuning, powder coating, painting, and silk screening.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding
Midwest Metal Products, Co. Inc.
from Midwest Metal Products

Midwest Metal Products is a precision metal fabrication facility, that has been serving a wide range of industries for over 45 years. By fabricating and manufacturing products that adhere to strict customer and AS9100B/ISO 9001:2000 standards, MMP has become a preferred vendor for major aerospace,... [See More]

  • Services: Assembly; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000
  • Company Information: Midwest Metal Products is a woman-owned small business, that has been serving a wide range of industries for over 35 years. As a single source manufacturer, they can provide their customers everything, from concept to finished product.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Punching; Rolling; Stamping; Welding
Misumi USA
from MISUMI USA

MISUMI USA, Inc. was established as a subsidiary of MISUMI Corp. in 1988. MISUMI Corp., founded in 1963, has been a powerful behind-the-scenes presence supporting the machine industry through its original catalog sales in Japan and other countries all over the world. Our mission is to provide highly... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
  • Company Information: MISUMI USA, Inc. is a leading supplier of configurable and fixed components for the Factory Automation, Press Die and Plastic Mold Industries. Currently serving thousands of customers worldwide, our products are used in a diverse range of industries.
  • Materials: Ferrous Metals; Nonferrous Metals; Exotic Metals and Alloys
Pickwick Manufacturing Services
from Pickwick Manufacturing Services

Innovative. Agile. Value-Driven. Pickwick Manufacturing Services is one of the 400 fastest-growing, privately held manufacturers in the United States according to INC Magazine (INC 5000, 2008). How is that possible for an established Midwestern sheet metal and structural steel fabricator?. The... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9000 Experience
  • Company Information: Full service sheet, plate and structural steel fabricator also paints and assembles complex OEM components of any size. Kitting, Mixed Model Production, Kanban and similar Lean Processes enable mass production efficiencies for low or moderate volume.
  • Capabilities: Laser Cutting; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Welding
AP Labs, Inc.
from AP Labs, Inc.

Located in San Diego and a 48,000 square foot facility in Tijuana Mexico. [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: AS 9100 / AS 9100B; ISO 9001:2000; MIL-SPEC
  • Company Information: We specialize in manufacturing sheet metal enclosures in a variety of sheet metal assemblies. We're capable of handling complex sheet metal assemblies. We're experienced in spot welding, tig welding and riveting processes.
  • Capabilities: Shearing; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Punching; Welding
Arnprior Rapid Mfg Solutions
from Arnprior Rapid Mfg Solutions

Located in Rochester, NY. [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: AS 9100 / AS 9100B; ISO 9001:2000
  • Company Information: From thin gauge metals and also plastics we offer quick turn-around on parts and assemblies, including finish. Our goal is to assist your team with the "Total Solution". Frames and Structures, Pre-production models and Production!
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Water / Abrasive Jet Cutting; Welding
Burloak Engineered Solutions, Inc.
from Burloak Engineered Solutions, Inc.

Headquarters in Burlington, Ontario, Canada with operations in Asia, Europe [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Short Run Production; Production
  • Certifications / Standards: QS-9000; ISO 9001:2000; TS 16949
  • Company Information: Burloak Engineered Solutions offers all forms of sheet metal, both locally and offshore. Their capabilities range from low volume custom products to machine enclosures and guards and higher volume repetitive parts.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
Butler Precision, Inc.
from Butler Precision Components, Inc.

Butler Precision Components is a woman-owned, Hub Zone qualified, small business. We have been producing custom parts for the aerospace and defense industries since 1991. Our parts are found on corporate jets, defense missiles, Nasa Space Shuttle, and even The International Space Station. All of our... [See More]

  • Services: CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Capabilities: Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Punching; Rolling; Stamping; Welding
  • Company Information: Butler Precision Components, Inc is a woman-owned, Hub Zone qualified CNC machine shop manufacturing high quality custom parts and components. We specialize in the aerospace and defense industries and service other industries as well.
  • Materials: Ferrous Metals; Nonferrous Metals
Central Components, Inc.
from Central Components, Inc.

Central Components has the capability to meet your expectations. Contact us at sales@centci.com to review what Central Components can do to support your sheet metal fabrication requirements. [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2008
  • Company Information: Central Components is a machining, manufacturing, engineering , and injection-molding facility that provides best-in-class services adhering to rigid standards in different sectors such as aerospace, military, optics, medical, and industrial applications.
  • Capabilities: Shearing; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Welding
ChemArt Company
from ChemArt Company

ChemArt has always been a major contributor to the Photo Chemical Machining (PCM) industry since its creation in 1976. Its founder, Richard Beaupre, was the originator of aqueous dry film photo resist used in PCM imaging applications. Currently, all dry film photo resists used in PCM applications... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; MIL-SPEC; OEM Specific
  • Company Information: ChemArt Company is an ISO 9001:2000 certified manufacturer of standard & custom etched metal parts and components. Since its inception in 1976, as a Veteran-Owned Small Business, ChemArt produces products adhering to military standard and specifications.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; Hardware / Fasteners; Painting / Powder Coating; Plating; Stamping
Cir-Q-Tek
from Cir-Q-Tek

When you think about it, metal products are the. backbone-the way in which a manufacturer can. literally make its mark, so obviously you want it done. with precision and the utmost attention to detail. That's where Cir-Q-Tek comes in using the latest in. high speed fabrication technology. We have... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: AS 9000; QS-9000; ISO 9001:2000; ISO 13485:2003; ISO 14001; TS 16949
  • Company Information: Cir-Q-Tek represents a variety of Manufacturer’s located in Mainland China and Taiwan. Cir-Q-Tek makes doing business in the Orient as simple as dealing domestically. Our facilities are UL approved, ISO9002, ISO14000, TS16949 and 13485 certified.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Stamping; Welding
EF Precision Group
from EF Precision Group (The)

Located in Willow Grove, Pennsylvania, USA [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; FDA Registered; MIL-SPEC
  • Company Information: As a Turnkey Solutions Provider we have made strategic alliances with Fabricators in close proximity of our facility. They are an extension of our manufacturing team and provide services to us to complete our total integration.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
IMEC
from IMEC

Located in Monett, Missouri, USA [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000
  • Company Information: IMEC is a custom manufacturer of sheet metal parts, assemblies and machined parts. Established in 1982, IMEC has built a reputation for Quality work and Precision Craftsmanship. IMEC's team of specialists take great pride in exceeding expectations.
  • Capabilities: Shearing; Laser Cutting; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Welding
Indian Creek Fabricators, Inc.
from Indian Creek Fabricators, Inc.

Indian Creek Fabricators Incorporated is an efficient, service oriented company. We are experts in commercial and industrial metal fabrication, and large scale machining equipped for processing a wide variety of requirements. Indian Creek Fabricators can take any project from concept and design... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Prototype; Short Run Production; Production
  • Certifications / Standards: ASME
  • Company Information: Indian Creek Fabricators can take any project from concept and design through fabrication and installation. They are proud to have an industry reputation for being on time and on budget while maintaining the highest quality finished product.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
Keystone Automation, Inc.
from Keystone Automation, Inc.

We offer excellent sheet metal and welding service. Whether it's guarding an old machine or making the frame for a new one we deliver quality and service. We work with all sorts of materials including stainless and aluminum. We offer plasma cutter service as well. We are aligned with several powder... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Capabilities: Shearing; Bending / Forming; CNC Fabrication; Welding
  • Company Information: Keystone Automation Inc.'s primary service is turnkey design and fabrication of specialized automated machinery. We provide conceptualdesigns, detailed CAD drawings, electrical and mechanical fabrication, testing and installation.
  • Materials: Ferrous Metals; Nonferrous Metals
Midlake Products & Mfg. Co., Inc.
from Midlake Products & Mfg. Co., Inc.

Midlake's metal fabrication capabilities are held to exceedingly high standards due to our involvement in producing product for the medical industry. Our customers require tight tolerances, smooth edges, and specified finishes along with short lead times on prototypes and production requirements. [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Prototype; Short Run Production; Production
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding
  • Company Information: Midlake Products is the industry leader in the manufacturing of specialty hinges and metal fabricated components. Our reputation is built upon integrity and our continuous investment in technology, training and equipment. Please contact us today.
  • Materials: Ferrous Metals; Nonferrous Metals; Exotic Metals and Alloys
Mouron & Company, Inc.
from Mouron & Company, Inc.

Located in Indianapolis, Indiana, USA [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: OEM Specific; NSF (National Sanitation Foundation)
  • Company Information: Mouron & Co., a custom fabricator in all types of metal, stainless steel, mild steel, aluminum, copper, brass, and any other type of metals, hardwoods, plywood, plastic laminates, solid surface material, and natural stone.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding
MRL Industries
from MRL Industries

An ISO 9001:2008 Certified source of precision metal fabricated parts, components, prototypes and integrated assemblies, we supply a variety of demanding industries, including Aerospace, Aviation, Military Defense, Medical and Commercial, offering custom solutions to the most difficult metal forming... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; MIL-SPEC; OEM Specific; ITAR
  • Company Information: We provide comprehensive sheet metal fabricating services, with the capability to design and manufacture the most intricate products requiring complicated procedures. And we assure the highest quality, quickest turns and delivery you can count on.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
Peridot Corporation
from Peridot Corporation

Our niche in the sheet metal business trends towards smaller parts. "Smaller than a microwave"size sheet metal is where we excel. We are not engaged in chassis racks and server size enclosures. However we are very good at for instance RFI/EMI shielding used in those size devices to ensure FCC... [See More]

  • Services: CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; ISO 13485:2003; FDA Registered
  • Company Information: Peridot Corp. is an ISO 13485 and ISO 9001:2008 registered precision mfg. company located in Silicon Valley. Featuring advanced component fabrication coupled with our multi-disciplinary Contract Mfg., Peridot will simplify your supply chain.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding
PMF Industries, Inc.
from PMF Industries, Inc.

Located in Williamsport, PA [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: AS 9100 / AS 9100B; ISO 9001:2000; MIL-SPEC
  • Company Information: PMF offers Concept to Completion metal forming manufacturing. No other company can combine flowforming with more state-of-the-art processes, in-house manufacturing, design flexibility, and overall project control than PMF.
  • Capabilities: Laser Cutting; Bending / Forming; Deburring / Graining; Welding
Precise Industries, Inc.
from Precise Industries, Inc.

Located in Brea, California [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; MIL-SPEC; OEM Specific
  • Company Information: Precise Industries custom sheet metal capabilities can produce product from the simplest bracket & chassis to complex assemblies and enclosures. They take your project concept to prototype, pre-production into volume manufacturing in a smooth transition.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; Hardware / Fasteners; Painting / Powder Coating; Punching; Rolling; Stamping; Welding
QTI Design & Prototype- Division of Quality Tool Inc.
from QTI Design & Prototype- Division of Quality Tool Inc.

Our forming capabilities utilize both standard and autoload CNC Turret Punch Presses and European Style Press Brakes. Our specialty is chassis and server enclosure manufacturing, in addition to chassis component manufacturing. Both standard tooling and specialized forms can be utilized in the... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Stamping; Water / Abrasive Jet Cutting; Welding
  • Company Information: At QTI Design & Prototype, we provide innovative solutions for mechanical design and product development. Our designers specialize in new product development from concept through production.
  • Materials: Ferrous Metals; Nonferrous Metals; Exotic Metals and Alloys
Quality Machining, Inc.
from Quality Machining, Inc.

Located in Bellefonte, (Central) Pennsylvania, USA [See More]

  • Services: Assembly; CAD / CAM Support; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9000 In Process
  • Company Information: Quality Machining is a full-service metalworking machining and fabricating shop that specializes in aluminum manufacturing. The shop is equipped to complete an entire machining or fabricating project in house.
  • Capabilities: Shearing; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding
Robinson Metal, Inc.
from Robinson Metal, Inc.

Located in Green Bay (De Pere), Wisconsin, USA [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: OEM Specific
  • Company Information: State of the art equipment and capabilities only begins to explain the fabrication division. They're considered one of the Midwest's premier metal fabricators, specializing in stainless steel, aluminum, carbon steel and polycarbonates.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Water / Abrasive Jet Cutting; Welding
STACI
from STACI

STACI offers customers high quality, cost-effective Sheet Metal and Machined Parts Fabrication. In doing so, STACI takes pride in being extremely flexible and responsive to all of its customers ’ needs. The company assists in managing specific customer requirements as well as providing a full... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; TS 16949
  • Company Information: STACI offers precision sheet metal and machined part fabrication. Their customers receive quality, cost effective products, while providing a full range of service capabilities to meet the most demanding of material specifications.
  • Capabilities: Shearing; Bending / Forming; Deburring / Graining; EDM; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Stamping; Welding
Will's Pro Custom Manufacturing, Inc.
from Will's Pro Custom Manufacturing, Inc.

Wills Pro Custom Manufacturing has the experience and capabilities required to meet the sheet metal fabrication needs of large and small customers alike. With over 100,000 sq. ft. manufacturing facility, and a significant investment in new equipment technology over recent years. We provide design... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Prototype; Short Run Production; Production
  • Capabilities: Shearing; Bending / Forming; Deburring / Graining; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding
  • Company Information: Will's Pro Custom Mfg serves a diverse customer base with attention to detail and a personal commitment to customer satisfaction. We specialize in prototyping working from a simple drawing to detailed models, one-up production to full scale manufacturing.
  • Materials: Ferrous Metals; Nonferrous Metals; Exotic Metals and Alloys
The Will-Burt Company
from Will-Burt Company (The)

Three Compelling Principles Drive Will-Burt's Contract Manufacturing Division: Meeting Customer Expectations. Unsurpassed Quality. On Time Delivery. Excellent manufacturing standards are met by the trained professionals operating our equipment. Will-Burt Contract Manufacturing Division operates... [See More]

  • Services: Assembly; CAD / CAM Support; Design Assistance; Pattern Layout; Just-in-Time; Prototype; Short Run Production; Production
  • Certifications / Standards: ISO 9001:2000; BSI Approved
  • Company Information: The Will-Burt Company has been providing world class light to medium metal fabrication since 1918. Three compelling principles drive Wil-Burt's Contract Manufacturing Division: Meeting Customer Expectations, Unsurpassed Quality, and On Time Delivery.
  • Capabilities: Shearing; Laser Cutting; Bending / Forming; CNC Fabrication; Hardware / Fasteners; Painting / Powder Coating; Plating; Punching; Rolling; Stamping; Welding