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A106B鋼管-813*7.92

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ASTMA333-6美標(biāo)無(wú)縫鋼管-457.2*9.53

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A106B美標(biāo)鋼管-60.3*3.91

A106無(wú)縫管-660*50

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ASTMA335P91無(wú)縫鋼管-457.2*14.27

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ASTMA106B無(wú)縫鋼管-965*17.48

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