... , GB,DIN,ASTM,EN,AISI welded tubes Specificationssupply 409L stainless steel pipes manufacture standard: JIS, GB,DIN,ASTM,EN,AISI welded tubesStainless ... steel pipesManufacture Standard:JIS, GB, DIN, ASTM, EN, AISIwelded tubes,Thickness: ... are packed by weaving bag, which is seaworthy 409L stainless steel pipes