stainless steel pipe use for stair railing,windows guards,Door Thickness:0.3~ ... From the nature, To the excellence. NameStainless Steel Railing StandardASTM A312, A249,A269 and A270,A554Material Grade201 ... ,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etcTestSquash test, extended test, water pressure test, crystal ... Line Polishing Line Bend: stainless steel Stair railing