... .Finish:power coating 3.Tolerance:0.5-1mm steel tube used in Chair frame assembly parts Production Description Haiyan Hongtai Metal ... are stampings, furniture hardware, machine part, Auto part,tube bending ,welding part4. Used in the machinery, construction, electronics, furniture and related fields ... -13646737163Tel :86-0573-86887878 Fax :86-0573-86887758 steel tube used in Chair frame assembly parts