ASTMA106B美標(biāo)鋼管-BN600XXS
ASTM無(wú)縫鋼管-NPS40SCH30
美標(biāo)低溫鋼管-NPS14SCH20
ASTM美標(biāo)無(wú)縫鋼管-NPS31/2SCH40S
ASTMA106B無(wú)縫鋼管-457.2*23.83
ASTM美標(biāo)無(wú)縫管-BN80SCH30
ASTMA106B無(wú)縫鋼管-660*30
ASTMA333-6美標(biāo)無(wú)縫鋼管-NPS36SCH100
ASTMA106GR.B無(wú)縫鋼管-BN500SCH60
ASTMA333-6無(wú)縫管-BN8SCH140
ASTMA106B美標(biāo)無(wú)縫鋼管-BN25SCH100
GRB美標(biāo)鋼管-BN100SCH30
ASTM美標(biāo)鋼管-BN25XS
ASTMA106B美標(biāo)鋼管-BN1100SCH30
ASTMA106無(wú)縫鋼管-NPS6XS
ASTMA106-B無(wú)縫鋼管-BN32STD
ASTM美標(biāo)無(wú)縫管-457.2*15.88
ASTMA106-B美標(biāo)無(wú)縫鋼管-660*40
GR.6美標(biāo)無(wú)縫鋼管-1219*12.7
ASTMA106無(wú)縫管-BN15SCH120