ASTMA106B美標鋼管-BN600XXS
ASTM無縫鋼管-NPS40SCH30
美標低溫鋼管-NPS14SCH20
ASTM美標無縫鋼管-NPS31/2SCH40S
ASTMA106B無縫鋼管-457.2*23.83
ASTM美標無縫管-BN80SCH30
ASTMA106B無縫鋼管-660*30
ASTMA333-6美標無縫鋼管-NPS36SCH100
ASTMA106GR.B無縫鋼管-BN500SCH60
ASTMA333-6無縫管-BN8SCH140
ASTMA106B美標無縫鋼管-BN25SCH100
GRB美標鋼管-BN100SCH30
ASTM美標鋼管-BN25XS
ASTMA106B美標鋼管-BN1100SCH30
ASTMA106無縫鋼管-NPS6XS
ASTMA106-B無縫鋼管-BN32STD
ASTM美標無縫管-457.2*15.88
ASTMA106-B美標無縫鋼管-660*40
GR.6美標無縫鋼管-1219*12.7
ASTMA106無縫管-BN15SCH120
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