stainless steel pipe and tube s:0.5-30mm D 6-630mm, Length:0-2000mm Standard:AISI,GB,ASTM 201 steel pipe and tube1.Grade: ... 201, 202, 304, 304L, 316L, 309S, 321, 400, 410, 430, 4392.Surface: NO.1, ... 0.05mmb)Thickness: ±10% of wall thicknessc)Length: ± 0.0-4.5mmApplicationconstruction upholstery, decorating lighting fitting piece, fluid pipeline, irregular shape ...