die casting parts ending cover and piston made by aluminium-alloy for pneumatic cylinder ,ISO 6431,DNC,MB,DNG,SC,SU,TN,STM ... cover and piston made by aluminium-alloy for pneumatic cylinder ,ISO 6431,DNC,MB,DNG,SC,,SU,TN,STM,CK diameter ... best equipment to make the different kind aluminium .zinc ,plastic ,die casting parts and make different kind mold according to our customer ...