1,good rigidity 2,good accuracy 3,strength 4,Withstand the huge impact and alternating stress Machining processes -TS16949 certified & 3C national compulsory product certification - Forging raw materials - Heat treatment - Machining - Testing - Package unit weight of casting 0.1kg-4kg/pcsmaterials can be forged carbon steel, alloy steel , Non quenched and tempered steelKey partners USA, Japan, ...