... ,champagne,bronze,black),Power Coated,Electrophoresis(silver,bronze,champagne,golden)4) Hardness:Mpa≥160,HV≥58,HW≥85) Standard:GB/T5237 ... ,office partition wall,folding screen ,fence ,various kinds of frame,display rack,goods rack ,mechanical dust-proof seal cover,etc,13) Corrosion resistance ...