Sheet and film dies are specific extrusions meant for the manufacture of raw plastic into thin, deformable masses of plastic material. After completing the plastic extrusion process, the raw material is exposed to dies that determine the thickness and surface of the processed plastic. Designs in the shape of a clothes hanger are most common, as the liquid material is fed through a chasm into an elongated, thin chamber. Other sheet/film die varieties resemble the shape of the majuscule form of the Latin character 'T'. These dies are very precise and produce thin expanses of thermoplastic material, so seams are unacceptable.