... , Machining Center 4.Inspected by CMM 5.Smooth surface, Machined Sand casting pressure plate used for industrial clutch and brakes. The O ... , QT550-6, QT600-3, QT700-3Grey cast iron: HT150, HT200, HT250, HT300;Alloy cast iron: ASTM C-1362, ASTM C-1500 ... , Ductile iron, alloy ironAluminumASTM A356, A360, A380, ADC12 etc.1.Sand casting 20112.Gravity pouring,3.CNC, Machining Center4.Inspected by CMM5 ...