product: brake disc material: Stainless steel process: sand casting condition: fully machined test: dynamic testing ... machine brake disc1) materials: grey iron, ductile iron, stainless steel, carbon steel, aluminum, copper alloy.2) standard:JIS,DIN,ASTM,BS, ... sand mix miller, quake press molding machine, turning molding machine.hanging shot blast cabinet,roller shot blast cabinet,heat treatment cellar ...