ASTMA106B無縫管-273.1*12.7

ASTMA333GR.6低溫無縫鋼管-33.4*4.55

ASTMA106無縫管-NPS11/4SCH80

美標合金鋼管-NPS4SCH5S

ASTMA106B美標無縫管-711*40

ASTMA106-B美標無縫鋼管-406.4*12.7

ASTM無縫鋼管-BN6SCH40S

ASTMA106無縫管-NPS3/8SCH40

GR.B無縫管-NPS36SCH30

ASTMA106B美標鋼管-NPS12STD

ASTMA106-B無縫鋼管-141.3*6.55

ASTM美標鋼管-88.9*4.78

ASTMA106無縫管-26.7*7.82

A106鋼管-NPS14XS

A106B美標無縫鋼管-BN300SCH100

ASTMA106-B無縫管-BN90XS

ASTMA335P9無縫鋼管-88.9*7.62

GRB美標無縫鋼管-NPS34SCH40

ASTMA106B美標無縫鋼管-NPS38SCH140

美標無縫鋼管-NPS1/8SCH5S