... , DIN, ASTM Various kinds of gears, gear wheel, gear shaft, precision gear and sintered gear. Material: ductile cast iron, bronze, carbon steel ... , stainless steel, alloy steel and copperModules: M0.5 to M8Class: 7 to 8Meets ISO, DIN ... and ASTM standardsBacklashes: 0.13 to 0.17mmDiameter: 1,000mm ( function(){ ...