Stainless Steel Welded Pipe: Stainless steel pipe standard: ASTM A688, A213, A249, A268, A269, A270, A312, A358, A376, A511 Stainless Steel Welded Pipe:Detail:Stainless steel pipe standard: ASTM A688, A213, A249, A268, ... 9) We supply welded stainless steel tube Straight type and U type.10) Main application: Heat Exchanger tube, car engine tube, pressure vessel tube, water transportation, decoration ...