GRB美標鋼管-33.4*3.38

ASTMA333GR6低溫無縫鋼管-168.3*7.11

ASTMA333GR.6無縫管-508*50.01

GR.B無縫管-273.1*12.7

A106B無縫鋼管-219.1*8.18

ASTMA333GR6無縫管-711*100

ASTMA333GR6鋼管-48.3*10.15

ASTMA335P91合金鋼管-609.6*14.27

ASTMA106-B無縫管-457.2*15.88

A106B鋼管-219.1*20.62

A335P11無縫鋼管-508*9.53

ASTMA106GR.B無縫鋼管-965*40

ASTMA106GRB無縫鋼管-323.9*14.27

ASTMA335P9合金鋼管-323.9*14.27

ASTMA333-6美標低溫鋼管-457.2*7.92

A333-6無縫鋼管-609.6*9.53

ASTMA335P91合金管-168.3*21.95

ASTMA106-B美標無縫管-114.3*6.02

A333-6美標低溫鋼管-73*5.16

A106B美標鋼管-610*46.02