A106無(wú)縫鋼管-NPS2SCH80
ASTMA106-B美標(biāo)無(wú)縫管-NPS40SCH30
GR.B無(wú)縫管-BN400SCH10
A106無(wú)縫管-NPS40SCH120
ASTMA106B無(wú)縫管-BN200XS
ASTMA106GR.B無(wú)縫鋼管-NPS21/2XXS
ASTMA106B美標(biāo)無(wú)縫鋼管-NPS12SCH120
美標(biāo)低溫鋼管-BN800SCH10
ASTM美標(biāo)鋼管-BN90SCH80
美標(biāo)合金鋼管-BN200SCH100
ASTMA106B美標(biāo)無(wú)縫管-BN90SCH10S
美標(biāo)低溫鋼管-813*60
ASTMA106-B無(wú)縫管-NPS1/2SCH120
ASTM美標(biāo)無(wú)縫管-NPS8XXS
ASTM無(wú)縫鋼管-NPS40SCH10
美標(biāo)無(wú)縫鋼管-NPS1/2STD
ASTMA333-6美標(biāo)無(wú)縫鋼管-NPS3SCH140
GRB美標(biāo)鋼管-BN80SCH10
GR.B無(wú)縫管-508*12.7
A106B鋼管-NPS34SCH5S