山東海鼎鋼管有限公司

A106B無縫管-355.6*7.92

ASTMA106B美標無縫管-NPS4SCH40S

ASTMA106-B美標無縫鋼管-BN400SCH80

A106B美標無縫鋼管-NPS3SCH100

ASTMA106無縫管-NPS3/8SCH10

A106B美標鋼管-BN1000XS

A106B無縫鋼管-NPS2SCH40S

A106B無縫鋼管-NPS1/8SCH80S

GR.B無縫管-NPS20STD

ASTMA106無縫鋼管-762*50

ASTMA333-6鋼管-BN600SCH160

A106B美標無縫鋼管-NPS38SCH100

ASTMA106-B美標無縫管-559*28.58

ASTMA333-6無縫管-NPS3/4SCH100

A106無縫管-NPS32SCH40S

A106B美標無縫鋼管-1067*12.7

ASTMA106無縫管-NPS14SCH140

GR.B無縫管-NPS44SCH40

美標合金鋼管-BN250SCH80S

A106B美標無縫鋼管-BN250SCH80S