GR.B無(wú)縫鋼管-965*40
A106B美標(biāo)無(wú)縫管-NPS34SCH5S
A106B美標(biāo)無(wú)縫鋼管-NPS11/2STD
ASTMA333-6無(wú)縫鋼管-NPS1/2XS
A106B美標(biāo)無(wú)縫鋼管-NPS14SCH20
A106無(wú)縫管-BN1000SCH160
A106B美標(biāo)鋼管-BN1100SCH120
ASTM美標(biāo)鋼管-NPS31/2SCH10S
ASTMA106-B無(wú)縫管-NPS18SCH30
GR.6低溫?zé)o縫鋼管-406.4*40.49
ASTMA106-B無(wú)縫管-219.1*8.18
ASTM無(wú)縫鋼管-457.2*7.92
GRB美標(biāo)無(wú)縫鋼管-BN125SCH40
ASTMA106無(wú)縫鋼管-BN450XS
ASTMA106-B美標(biāo)無(wú)縫管-141.3*12.7
美標(biāo)合金鋼管-NPS42SCH100
ASTMA106B美標(biāo)無(wú)縫鋼管-NPS34SCH140
ASTMA106GRB無(wú)縫鋼管-NPS4STD
GR.B無(wú)縫管-BN6STD
ASTMA333-6美標(biāo)無(wú)縫鋼管-BN900SCH60