... A268, A269, A270, A312, A358, A376, A511 Stainless Steel Welded Pipe:Detail:Stainless steel pipe standard: ASTM A688, A213, A249, A268, A269, ... : 304, 304L, 316, 316L, 321, 317L etc.5) Surface: Bright anneal, mirror polish, satin finish, mill finish6) Packing: each in ... composition analysis ect, corrosion test ect.9) We supply welded stainless steel tube Straight type and U type.10) Main application: ...