... .material:carbon steel 2.standard:din975 3.size:from 1 meter to 4 meter 4.surface treatment:hot dip galvanized We offer all kinds ... Steel.3.Standard: DIN975, ANSI ,BSW, GB. Gr 4.8-8.8.B7.4.Specifications: M3-M56,3/16-1"-1/2 ... .1M-4M.5.Surface Treatment: Z.P. PLAIN, BLACK,HDG ...