... Center 4.Inspected by CMM 5.ISO9001:2000 Oem casting DISC parts used for industrial clutch and brake . CompanyIntroduction1. Our ... piston, pressure plate, center plate, wear plate, cylinder, impeller, disc etc.3. Nearly 150 varieties of products. Inspection1. The whole ... Heat resisting steels 303, 304, 309, 314, 316,316L, 410, 420, 17-4PHIron ( all grades)Gray iron, Ductile iron, alloy ironAluminumASTM ...