... .Inspected by CMM 5.ISO9001:2000 Oem casting iron disc used for industrial clutch,These parts made with sand ... , ring flange , electromagnetic steel cover, piston, pressure plate, center plate, wear plate, cylinder, impeller, disc etc.3. Nearly 150 varieties of products.Inspection1 ... iron, alloy ironAluminumA356, A360, A380, ADC12 etc.1.OEM disc casting 2.Sand casting ASTM 100-70-03, Gravity pouring3 ...