... specialized in castings and forgings.1.Material:stainless steel,carbon steel,ductile iron,grey iron,melleable iron,aluminum, ... -300T.4.Machining: complete machining such as Machining center, CNC, Lathe, Milling machine,drilling etc. Surface treatment: painting, polishing, ... service Material Grey iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminium,brass etc.standardDIN, ASTM, BS, JIS ...