美標低溫鋼管-NPS1SCH80S
ASTMA333-6美標無縫鋼管-NPS38SCH10S
A106B鋼管-BN8STD
GRB美標無縫鋼管-BN200SCH80S
ASTMA106B美標無縫管-BN15SCH80S
ASTMA106GR.B無縫鋼管-NPS3/4SCH140
ASTMA333-6低溫無縫管-88.9*7.62
A106B美標鋼管-711*90
ASTMA106-B無縫管-NPS30SCH80S
ASTMA106-B無縫鋼管-NPS3STD
GRB美標鋼管-NPS22SCH80
ASTMA333-6無縫管-NPS1/4SCH40
ASTM美標無縫鋼管-NPS26SCH40
GRB美標鋼管-355.6*31.75
A106B無縫管-NPS34SCH5S
ASTMA333-6無縫管-BN250SCH10
A355P22無縫鋼管-141.3*9.53
ASTM無縫鋼管-60.3*5.54
GR.6低溫無縫鋼管-114.3*6.02
GRB美標鋼管-406.4*36.53
試用會員
