investment steel part 1) Investment Casting Parts 2) direct factory supplier 3) good offer investment steel part1) Investment Casting Parts 2) direct factory supplier3) good offer Material Grey iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminium,brass etc.standardDIN, ASTM, BS, JIS etc.processsand casting,resin bonded casting, investment casting(lost wax casting), die casting ...