The corporation has passed through ISO9001:2000 quality managements systems are legalized,and PED's material of European Free Trade Association pressure equipment instruction is legalized. Stainless steel welding pipe/tube Stainless steel mirror pipe/tube Carry out the standard:ASTM A312 A269 A778 A554 A270 A249 Material card number:304 304L 316L Product specification:1/2"-8" Thickness grade:SCH5S SCH10S SCH20S SCH40S Tensile strength:>480-520( MPa) Yield strength:>175-205( MPa) Each length:5.8meters 6.0meters 6.1meters or specify the size Pack the way:Bale or consultation Method of payment:Can't the repeal letter of credit or bank telegraphic transfer