... iron tractor partsMaterial: gray iron, ductile ironProcess: sand casting,lost foam casting and vacuum castingStandard: GB ,GOST ,DIN ,JISWeight range: ... 1~1000KGCasting process: client drawings-Mould-rough casting-maching-packing-delivery Packing Wooden case, pallet, or as the ... , SpectrometerVisible Spectrophotometer,ect(5) ISO9001:2008 quality control casting gray iron tractor part