... ,EN598 3.OEM servie 4.Material: Iron Products name: Ductile iron pipe fitting specifications:sand casting construction machinery ... is availablesand casting construction machinery parts1)Material:grey iron,ductile iron by vacuum casting,sand casting,lost foam casting or ... testing(4)Prevailing microstructure testing 1)Material:grey iron,ductile iron by vacuum casting,sand casting,lost foam casting or ...