ASTMA333-6無縫管-BN800SCH40S
美標(biāo)無縫鋼管-BN300SCH140
A106B無縫管-NPS1/2SCH30
A106B美標(biāo)無縫管-BN65STD
美標(biāo)無縫鋼管-BN6SCH120
A106鋼管-BN600XS
A106無縫鋼管-BN40XXS
GRB美標(biāo)無縫鋼管-BN80SCH60
A106B無縫管-BN80SCH40S
A106B美標(biāo)無縫鋼管-BN65SCH80S
ASTMA106鋼管-NPS48XXS
ASTMA333-6無縫鋼管-BN6SCH100
A106鋼管-BN10SCH60
ASTMA333-6美標(biāo)無縫鋼管-NPS3SCH160
A106B美標(biāo)無縫管-BN10SCH20
A106B美標(biāo)無縫鋼管-NPS1STD
ASTMA333-6無縫管-NPS32SCH5S
美標(biāo)低溫鋼管-BN450SCH100
A106B鋼管-BN6XS
ASTMA335P91無縫鋼管-323.9*10.31