ASTMA106B無縫鋼管-NPS21/2XS
A106無縫鋼管-BN900SCH5S
美標(biāo)低溫鋼管-NPS4SCH160
A106無縫管-NPS4SCH30
ASTMA106鋼管-NPS30SCH140
ASTMA106-B美標(biāo)無縫鋼管-BN32SCH80S
A106B美標(biāo)鋼管-BN8XS
A106B美標(biāo)無縫鋼管-BN40SCH120
ASTMA106-B美標(biāo)無縫管-NPS11/4XS
ASTMA106B無縫管-508*20.62
A106B美標(biāo)無縫鋼管-73*9.53
GR.B無縫鋼管-NPS1/4SCH10S
ASTMA106B無縫鋼管-NPS46SCH120
ASTM美標(biāo)無縫管-BN400SCH20
ASTMA106GRB無縫鋼管-BN600SCH100
ASTMA106B美標(biāo)鋼管-NPS8XS
ASTMA106B無縫管-NPS4SCH30
A106B美標(biāo)無縫鋼管-406.4*40.49
GRB美標(biāo)無縫鋼管-NPS31/2XXS
A106B美標(biāo)無縫鋼管-42.2*6.35