Product Announcements:
Metal Balls

304 stainless steel balls offer excellent corrosion resistance and moderate hardness, ideal for automotive components, home appliances, office automation, valves, and precision devices in medical and chemical industries. Read more...

Magnetic 420 stainless steel balls combine high hardness, corrosion resistance, and precision performance for bearings, valves, automotive components, and industrial machinery. Read more...

Sunan & Weijie's 420 stainless steel balls combine magnetic properties with excellent corrosion resistance and optimal hardness (HRC 50–55), delivering durability and dimensional accuracy for demanding industrial use. Suited to bearings, valves, chain wheels, motorcycle components, and petroleum industry applications requiring both precision and long-term reliability. Read more...

High-strength 1085 carbon steel balls with excellent magnetism and wear resistance, ideal for bearings, chain wheels, and precision engineering applications. Read more...

Sunan & Weijie's high-precision glass spheres offer consistent size and finish from 1.5 to 8 mm, in bright or sand-grinding surfaces. The transparent, colorless spheres integrate easily into sprayers, scent bottles, pneumatic tools, decorative designs, and automotive parts, with custom options available. Read more...

High-precision stainless steel balls with diameters from 0.8 mm to 80 mm, manufactured under ISO9002 standards, designed for reliable performance in industrial and mechanical applications. Read more...

Durable carbon and stainless steel grinding balls for precise polishing of hardware and irregular workpieces. Read more...

Our 302 Stainless Steel Balls offer exceptional hardness, anti-rust, and anti-corrosion properties. Ideal for automotive, aviation, bearings, craftwork, and medical instruments, these versatile balls ensure reliable performance in demanding applications. Read more...

Sunan & Weijie's flying saucer grinding balls polish hardware with irregular or non-standard shapes to consistent, high-quality finishes. Made from carbon steel, 201, or 304 stainless steel in standard sizes from 3.5×5.5 to 7×10, with custom sizes available for hardware manufacturing and precision component finishing. Read more...

Manufactured from H62/H65 brass (62% Cu, 38% Zn), these precision brass balls offer excellent machinability and consistent performance for industrial valves, fluid control systems, automation equipment, instrumentation, HVAC systems, and water treatment applications. Read more...