A106B無縫管-BN10SCH140

A106B鋼管-NPS46SCH100

A106B無縫鋼管-NPS21/2SCH80S

ASTM美標鋼管-NPS10SCH60

A106無縫鋼管-711*90

美標無縫鋼管-457.2*7.92

ASTMA106無縫管-355.6*23.83

ASTMA106-B無縫鋼管-BN125SCH120

ASTMA106GR.B無縫鋼管-BN700SCH60

GR.6低溫無縫鋼管-42.2*3.56

GR.B無縫管-NPS4SCH40S

ASTMA106B美標鋼管-610*59.54

GRB美標鋼管-141.3*12.7

ASTMA333-6無縫鋼管-NPS30SCH160

ASTM美標無縫鋼管-457.2*45.24

ASTMA106-B無縫鋼管-NPS10SCH40

ASTM美標無縫管-BN90SCH120

ASTM美標無縫鋼管-NPS1/8SCH140

美標合金鋼管-BN500SCH140

美標合金鋼管-168.3*7.11