GR.B無縫管-BN700SCH100
ASTMA106B美標無縫鋼管-NPS5XXS
ASTM無縫鋼管-NPS8SCH140
ASTMA106-B美標無縫鋼管-406.4*19.05
ASTMA106B美標無縫鋼管-BN150SCH10S
A106B美標無縫鋼管-BN50SCH120
美標無縫鋼管-NPS10SCH80S
A106B鋼管-NPS24XXS
ASTM美標無縫管-NPS36XXS
ASTMA333-6無縫管-NPS42SCH5S
美標低溫鋼管-NPS11/4SCH40
A106B鋼管-BN125SCH100
ASTM美標無縫鋼管-219.1*10.31
A106無縫鋼管-NPS11/2SCH60
A106無縫鋼管-BN15SCH160
GRB美標無縫鋼管-NPS10SCH140
ASTMA106鋼管-BN900SCH120
ASTMA106GRB無縫鋼管-NPS34SCH140
ASTMA106-B美標無縫鋼管-508*25.4
A106鋼管-NPS44SCH120