Coating Raw Material Coating Type Uncoated Zinc plated Yellow zinc plated Black zinc plated Zinc nickel Zinc nickel black Hot dip galvanized Phosphate Nickel plated Raw Material Steel 6 Steel 8 Steel 10 Stainless Steel A2 Stainless Steel A4 DMESM21,64,324M2,525,455M32,46,015,5M3,52,86,856M43,27,667M548,798M6511,0510M75,512,1211M86,514,3813M10818,9017M121021,1019M141124,4922M161326,7524M181529,5627M201632,9530M221835,0332M241939,5536M272245,2041M302450,8546M332655,3750M362960,7955M393166,4460M423471,365M453676,9570M483882,675M524288,5280