ASTMA106-B美標(biāo)無縫鋼管-NPS36SCH140
ASTM美標(biāo)無縫鋼管-NPS42SCH40
ASTMA106GRB無縫鋼管-BN10SCH160
A106鋼管-711*100
ASTMA106-B無縫管-NPS12SCH30
ASTMA106B美標(biāo)無縫管-609.6*17.48
ASTMA106無縫鋼管-NPS24SCH140
ASTMA106無縫鋼管-BN1200SCH10
GRB美標(biāo)無縫鋼管-NPS10SCH60
ASTMA333-6無縫鋼管-NPS2SCH10S
ASTM無縫鋼管-NPS3SCH40
ASTMA106GR.B無縫鋼管-BN40SCH140
GRB美標(biāo)鋼管-BN350SCH40
ASTMA106-B無縫鋼管-88.9*15.24
ASTM美標(biāo)鋼管-NPS1/8SCH60
ASTMA333GR.6無縫鋼管-610*30.96
ASTM美標(biāo)鋼管-BN300SCH10S
ASTM美標(biāo)無縫管-NPS11/2SCH5S
A106B鋼管-BN200SCH160
ASTMA333-6無縫鋼管-BN125XS