... 's material:SKD11,SKH51,NAK80, etc2. Precision grinding less than 0.002.3. Precision mould component with precise produce.4. With ... , milling machinery.7)product accuracy : diamension tolerance +-0.001mm, axiality within 0.002mm,roundness within 0.0015mm, surface roughness within Ra0.025, straightness ... exstence is invaluable for the development of the company mould co. ltd