... #,240#,320#,400#,600#,Satin polish,Mirror stainless steel round pipe, square pipe, stainless steel ornamental pipe; welded stainless steel pipe1)Standard: ASTM;JIS;DIN 2) Grade ... , Metallurgy, Medicine, Mechanical field etc 9)The mechanism is good. Tubes can be bended, enlarged, shrunk, and staved. stainless steel welded pipe