美標(biāo)低溫鋼管-NPS4SCH60
ASTMA106無(wú)縫管-NPS48SCH60
ASTMA106B無(wú)縫鋼管-711*80
ASTMA333-6美標(biāo)低溫鋼管-711*12.7
ASTMA333-6無(wú)縫鋼管-NPS14SCH10S
ASTMA333-6無(wú)縫鋼管-NPS1/2SCH5S
ASTMA106B無(wú)縫管-NPS6SCH10S
ASTM美標(biāo)無(wú)縫管-BN250SCH10
ASTMA333-6無(wú)縫鋼管-NPS11/4STD
ASTMA106B無(wú)縫鋼管-BN900SCH140
ASTMA106B無(wú)縫管-BN400SCH40
ASTMA106GR.B無(wú)縫鋼管-813*7.92
ASTMA106B美標(biāo)無(wú)縫管-NPS42SCH20
ASTMA106無(wú)縫管-559*22.23
ASTMA333-6鋼管-NPS22SCH60
ASTM無(wú)縫鋼管-BN50SCH40S
ASTM無(wú)縫鋼管-BN800SCH10S
ASTMA106-B美標(biāo)無(wú)縫鋼管-BN150SCH160
ASTMA106GR.B無(wú)縫鋼管-NPS26SCH60
美標(biāo)合金鋼管-NPS1/4SCH140