ASTM A572 Gr. 50 Spiral Steel Pipes

ASTM A572 Gr. 50 Spiral Steel Pipes 　　Model NO.: SG49 　　Technique: SAW 　　Surface Treatment: Bared, Galvanized, Oiled, Color Paint, or Other an 　　Section Shape: Round 　　Origin of Place: China 　　Length: 6-12m 　　Pipe End: Plain End or Bevelled End 　　Specification: 219-3500 　　Type: Welded 　　Material: Carbon Steel - See more at: http://www.strpipeline.com/product/spiral/300.html#sthash.4MifGXSD.dpuf