A106鋼管-NPS1/4SCH40
ASTM美標(biāo)鋼管-NPS38XS
A106B美標(biāo)無縫管-NPS3SCH80S
ASTMA333-6低溫?zé)o縫管-273.1*28.58
GRB美標(biāo)無縫鋼管-NPS3/8SCH5S
GRB美標(biāo)鋼管-813*30
A106無縫管-BN300STD
ASTMA106-B無縫管-BN200SCH40S
ASTMA106無縫鋼管-NPS36SCH100
GR.B無縫鋼管-BN65XXS
ASTMA333-6無縫鋼管-NPS44XXS
ASTMA106B美標(biāo)無縫管-BN150SCH80S
ASTMA106無縫鋼管-BN65SCH40
ASTMA106B無縫管-355.6*15.09
ASTMA106鋼管-BN800SCH100
美標(biāo)無縫鋼管-BN200SCH60
ASTMA106-B無縫鋼管-NPS12SCH20
GR.B無縫管-88.9*5.49
ASTMA106-B無縫鋼管-273.1*9.27
美標(biāo)合金鋼管-457.2*34.93