... ,TK:0.3-3.0mm 3.WELDED:TIG 4.Standard:ASTM-a554 From the nature, To the excellence. Name ... ASTM-A554 pipeItemsSquare tubes, round tubes, oval pipes, special shaped pipes, ... screen,door,window, balcony,fence,bench,furniture,etcTestSquash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material ...