spiral pipes

spiral pipes
Product name:DIN En 10220  Spiral Steel Pipe 　　Model NO.: Spiral Steel Pipe 　　Technique: ERW LSAW SSAW Smls 　　Surface Treatment: 3lpe 3PE 3PP 2PE 2PP Fbe 　　Section Shape: Round 　　W.T: 5-60 　　Coating: 3lpe 3PE 3PP 2PP 2PE Fbe 　　Trademark: Shengtian 　　Specification: API 　　Type: SSAW/LSAW/ERW/Smls 　　Material: Carbon Steel