... steel 3.zinc plated,black,etc 4.flat,pan, etc. die casting aluminium 1.Surface Finish: annealing, natural anodization, heat treatment, polishing ... : Product name die casting aluminium Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS4202.Steel:C45(K1045), C46(K1046),C203.Brass:C36000 ( C26800 ...