ASTMA333-6無縫鋼管-BN90SCH100
A106B無縫鋼管-508*44.45
美標無縫鋼管-BN32SCH40S
GRB美標無縫鋼管-NPS36SCH5S
ASTMA106GR.B無縫鋼管-NPS44SCH10
ASTMA106-B美標無縫鋼管-273.1*25.4
ASTMA106無縫鋼管-NPS21/2SCH40
ASTMA335P11合金鋼管-711*90
ASTMA333-6無縫鋼管-NPS1/8SCH10S
ASTMA106B無縫鋼管-NPS20SCH100
ASTMA333-6美標無縫鋼管-BN800XXS
ASTMA106-B無縫管-BN100SCH20
ASTMA106無縫管-BN32SCH120
GRB美標無縫鋼管-NPS3XXS
A333GR.6無縫鋼管-73*7.01
A106B鋼管-NPS11/2SCH40S
A106B無縫管-NPS3/4STD
A106B美標無縫管-BN10SCH120
美標低溫鋼管-406.4*12.7
A106鋼管-914*20
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