ASTM美標(biāo)鋼管-BN25SCH10
ASTMA106-B美標(biāo)無縫鋼管-BN15SCH5S
ASTMA106GR.B無縫鋼管-NPS26SCH140
ASTMA106B美標(biāo)無縫管-BN20STD
A333-6無縫鋼管-762*20
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ASTMA106GR.B無縫鋼管-BN10SCH60
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ASTM無縫鋼管-273.1*9.27
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ASTMA106B無縫鋼管-NPS26SCH60
A106B美標(biāo)鋼管-BN150SCH140
A106B美標(biāo)鋼管-BN300SCH10S
ASTMA106無縫管-BN1000SCH60
ASTM美標(biāo)鋼管-NPS3XXS
A106鋼管-BN8STD
ASTMA106B美標(biāo)無縫管-BN90SCH60
美標(biāo)低溫鋼管-BN600SCH40
A106B無縫鋼管-914*12.7