ASTMA335P5合金鋼管-406.4*9.53
美標(biāo)無縫鋼管-BN700XS
ASTM無縫鋼管-NPS20STD
ASTMA106無縫鋼管-BN900SCH40
ASTMA106B無縫鋼管-NPS14SCH5S
美標(biāo)鋼管-813*40
GR.B無縫管-BN20SCH5S
ASTMA106-B美標(biāo)無縫鋼管-NPS2SCH5S
ASTMA333-6美標(biāo)無縫鋼管-BN25SCH140
ASTMA333-6無縫管-BN400SCH10S
A106無縫管-BN15SCH100
A106B美標(biāo)無縫管-BN350SCH160
ASTMA106鋼管-457.2*14.27
ASTMA106-B無縫鋼管-BN50SCH120
ASTMA106B美標(biāo)無縫管-NPS20SCH40
美標(biāo)低溫鋼管-NPS24SCH30
A106鋼管-NPS6SCH60
ASTMA335P9無縫鋼管-273.1*12.7
ASTM美標(biāo)鋼管-965*40
美標(biāo)合金鋼管-355.6*27.79