... 4.Inspected by CMM 5.Smooth surface, Machined Sand casting pressure plate used for industrial clutch and brakes. The O. ... fittings, ring flange , electromagnetic steel cover, piston, pressure plate, center plate, wear plate, cylinder, impeller, disc etc.3. Nearly 150 varieties ... ironAluminumASTM A356, A360, A380, ADC12 etc.1.Sand casting 20112.Gravity pouring,3.CNC, Machining Center4.Inspected by CMM5 ...