山東海鼎鋼管有限公司

ASTM美標鋼管-406.4*16.66

ASTMA106GR.B無縫鋼管-355.6*23.83

A106B美標無縫鋼管-BN250SCH5S

A333GR.6低溫無縫鋼管-406.4*30.96

ASTM無縫鋼管-BN10SCH10

A106B美標無縫鋼管-BN1200SCH10S

A106B美標鋼管-NPS8SCH5S

GR.B無縫鋼管-BN6SCH80

ASTMA333-6無縫鋼管-914*20

ASTMA333-6美標無縫鋼管-NPS34SCH40S

ASTMA335P9合金鋼管-101.6*4.78

美標低溫鋼管-NPS11/2SCH120

A106無縫管-NPS10SCH80

美標低溫鋼管-457.2*45.24

A106鋼管-NPS21/2SCH30

ASTMA333-6美標無縫鋼管-26.7*5.56

ASTMA333-6無縫管-BN10SCH20

ASTMA106無縫管-BN1200SCH80S

GRB美標鋼管-BN100SCH40

ASTMA333-6無縫鋼管-NPS24SCH10S