... A249, A312, GB151, GB12771, HG20537MaterialGrade: 304, 304L,310s 316, 316L,321,840LengthMax: 25metresTalerance:a)Outer ... ' requestsStandardASTM/A249, A312, GB151, GB12771, HG20537MaterialGrade: 304, 304L,310s 316, 316L,321,840SurfaceStain Direction / Mirror / Custom ( ... door/windows,gate fitting,inside staircases ,balcony balustades,furniture,sanitary wares,kitchen wares 304 stainless steel pipe /tube