1.Piston casting for induatrial clutch 2.17kg pressure test 3.CNC Machining Center 4. ... 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