Casting tractor parts GB,GOST,JIS,DIN,ASTM standard ISO9001:2008 Certificate Material:gray iron,ductile iron,steel OEM is ok sand ... casting tractor parts1)Material:grey iron,ductile iron by vacuum casting,sand casting,lost foam casting and ... Packing and Delivery controlDetermine the size & material of the parts according toTaking different anti-rust protection to products according the ...