... 2.standards:JIS,DIN,ASTM,BS 3.process: Sand casting gear 4.Weight:300kg 1. material: gray iron,ductile iron, carbon ... steel, aluminum, bronze, brass2. weight :0.1 kg to 10000 kg3. Size :accoring to customers requirements4 ... CO., LTDADD: Youjia Industry Zone, Ganjingzi District, Dalian , China casting gear