ASTMA106B美標(biāo)無(wú)縫鋼管-BN500SCH60
A106B美標(biāo)鋼管-NPS12SCH5S
ASTMA333-6美標(biāo)無(wú)縫鋼管-NPS20XXS
ASTMA106B美標(biāo)無(wú)縫管-NPS24SCH80
A106無(wú)縫管-NPS30SCH30
A106無(wú)縫管-BN20SCH80S
GRB美標(biāo)無(wú)縫鋼管-BN700SCH40
ASTMA106無(wú)縫管-610*46.02
ASTMA106-B無(wú)縫鋼管-NPS31/2SCH10
A106B無(wú)縫管-BN250SCH140
ASTMA106-B美標(biāo)無(wú)縫鋼管-BN600SCH10
ASTMA106B美標(biāo)無(wú)縫管-NPS1/2XXS
GR6美標(biāo)低溫鋼管-21.3*7.47
A106B美標(biāo)無(wú)縫鋼管-BN350SCH10S
ASTMA106B美標(biāo)鋼管-BN150SCH10S
GRB美標(biāo)無(wú)縫鋼管-NPS34XS
A106無(wú)縫管-NPS1SCH20
A106無(wú)縫鋼管-NPS22STD
ASTMA106無(wú)縫管-NPS24SCH60
ASTMA106-B美標(biāo)無(wú)縫管-711*60