1.Piston casting for induatrial clutch 2.17kg pressure test 3.CNC Machining Center ... . Ra1.0, Polish Ra0.4 Piston casting used for industrial clutch and brakes.1. Material: ASTM C-1362;2. Sand ... piston, pressure plate, center plate, wear plate, cylinder, impeller, disc etc.3. Nearly 150 varieties of products. Releated parts, for ... A356, A360, A380, ADC12 etc. Piston Casting for industrial clutch