supply seamless API 5L GR.B steel pipe hg (hits:306) |
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E- m ai l(M S N):haichengqiu@hotmail.com, Wang Haicheng +86 -158 3377 5527 Cangzhou Qiancheng Steel-Pipe CO.,LTD,china supply API 5L Gr.B carbon steel seamless steel pipes. Standard API 5L/ASTM A106/ASTM A53 Dimension range 33.4 - 914.4 mm Wall thickness range 3- 60 mm
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