ASTMA106-B無縫鋼管-NPS48SCH160
ASTMA106鋼管-BN80SCH140
A106無縫鋼管-BN500SCH5S
美標無縫鋼管-BN90SCH120
A106鋼管-BN50SCH10S
ASTMA106-B無縫鋼管-NPS3/4SCH80
GRB美標鋼管-141.3*6.55
美標低溫鋼管-BN600SCH100
ASTMA106-B無縫鋼管-660*50
ASTMA106無縫管-BN40SCH160
GR.B無縫鋼管-BN700SCH100
ASTMA333-6美標無縫鋼管-BN40SCH40
ASTMA106鋼管-508*32.83
ASTMA106-B美標無縫鋼管-BN400SCH40S
GR.B無縫鋼管-33.4*9.09
美標合金鋼管-48.3*10.15
ASTM美標無縫鋼管-219.1*22.23
ASTMA106GRB無縫鋼管-BN20SCH30
GR.B無縫管-NPS5SCH40
A106B鋼管-NPS26SCH80
試用會員
