supply steel pipe API 5L GR.B H (hits:352) |
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Cangzhou Qiancheng Steel-Pipe CO.,LTD,china Han Xiao Peng0086 150 7573 1673 E-mail :onltweilai@yahoo.cn supply API 5L Gr.B carbon steel seamless steel pipes. Standard API 5L/ASTM A106/ASTM A53 Dimension range 1/2''-36'' Wall thickness range SCH20-SCH160
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