We pay high attention to the quality of each die we make and all our dies are 100% individually inspected under microscope X-80, to check its bore shape and smooth finish, and analyze reduction angle as well as bearing length.

Our quality control system also requires to check every manufacturing process such as purity and accuracy of the materials we purchased, as well as pressing, shaping, sintering, EDM drilling or laser piercing, grinding and wire polishing, to assure our customers all our products with superior performance.