ASTM A312 Stainless Steel Spiral Pipe

ASTM A312 Stainless Steel Spiral Pipe 　　Model NO.: 351-1220mm 　　Technique: Cold Drawn 　　Surface Treatment: Varnishing 　　Section Shape: Round 　　Wall Thickness: 7-30mm 　　Ends: Plain 　　Specification: ISO 9001: 2008 　　Type: Welded 　　Material: Carbon Steel - See more at: http://www.strpipeline.com/product/spiral/292.html#sthash.bHa7SmiY.dpuf