山東海鼎鋼管有限公司

ASTMA106B無縫管-BN32SCH120

ASTMA333-6美標無縫鋼管-88.9*15.24

ASTMA106-B美標無縫鋼管-NPS12SCH60

A106B無縫鋼管-BN1100SCH10

GR.B無縫鋼管-NPS34SCH10

ASTMA106無縫管-BN250SCH140

ASTMA106B美標鋼管-NPS6SCH10S

ASTMA106鋼管-NPS6SCH10S

ASTMA333-6鋼管-NPS34SCH80

A106B美標鋼管-NPS11/4SCH40S

美標低溫鋼管-457.2*39.67

ASTMA106-B美標無縫鋼管-NPS4SCH140

美標合金鋼管-NPS48XS

A106無縫管-NPS22SCH10

ASTMA106無縫鋼管-BN1100SCH40S

A106B美標無縫管-BN250XXS

美標無縫鋼管-42.2*6.35

ASTMA106B美標無縫鋼管-NPS44SCH40S

ASTM美標鋼管-BN50SCH60

GRB美標無縫鋼管-BN450STD