山東海鼎鋼管有限公司

GRB美標鋼管-NPS22SCH5S

A106B鋼管-NPS36SCH20

ASTMA335P11合金鋼管-273.1*21.44

ASTMA106B無縫管-NPS44XXS

A106鋼管-33.4*9.09

ASTMA106無縫管-BN400SCH60

ASTMA106無縫管-355.6*7.92

GR.B無縫管-BN1000SCH120

ASTMA106-B美標無縫管-813*50

ASTMA106-B無縫管-BN400SCH140

A333-6低溫鋼管-711*12.7

ASTMA106-B無縫鋼管-NPS46SCH20

A106B美標無縫管-NPS48SCH120

ASTMA333GR.6低溫無縫鋼管-914*20

ASTM美標無縫管-BN80XXS

ASTMA106B美標無縫管-BN6SCH120

ASTMA106B無縫鋼管-NPS48SCH5S

ASTMA106-B美標無縫鋼管-NPS44SCH160

ASTMA333-6鋼管-BN40SCH160

ASTMA106鋼管-457.2*15.88