... -1775, EN39, EN10219; JIS G3444: 2004Surface Finish: Hot Dipped Galvanized, Electro Galvanized, Black, Painted, Threaded, EngravedADTO GROUP, founded in 1998, is ... has 6 ERW steel tube production lines, 2 hot dipped galvanizing lines and 4 hollow section production lines. It's annual ... in safe, efficient, harmonious building world together with our clients. Electro Galvanized Scaffolding Pipe