stainless steel welding pipes

1) Production Standard :ASTM A269, ASTM A249,ASTM A554,ASTM A312,DIN17457,DIN17455,EN10217 2)Product applications and applicable field: heat-exchangers, condensers, pipe fittings, electric power ,paper making, medicine, etc. 3) Stainless steel materials: TP304, TP304L, TP316L, TP321, TP310S;TP317L,409,430,437ETC. 4) Specification range: outer diameter: 6.0mm-219mm; wall thickness: 0.25mm-3.5mm5), Surface: bright annealing, mirror polished, satin finish,6), package: one or several length in a plastic bag, then bundle with knitted plastic bag, put in wooden box or angle steel box.7),eddy current, hydrolic test, mechanical test, chemical composition analysis, etc, 5) Annual production capacity: 8000 tons