... do any metal or alloy parts,such as stainless steel,carbon steel,ductile iron,melleable iron,aluminum,brass,bronze etc. ... treatment: painting, polishing, heat treatment, plaining or galvanization etc.5.Size and Design* As per the customer's drawings and ... . excellent service Material Grey iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminium,brass etc.standardDIN, ASTM, BS, JIS etc ...