山東海鼎鋼管有限公司

ASTMA335P11合金鋼管-457.2*19.05

ASTMA333-6低溫無縫鋼管-914*50

ASTM美標鋼管-610*17.48

ASTMA106-B無縫管-711*12.7

美標低溫鋼管-813*7.92

ASTMA335P5合金鋼管-219.1*12.7

ASTMA335P11無縫鋼管-114.3*13.49

GR.6美標無縫鋼管-323.9*33.32

ASTMA333GR6低溫鋼管-457.2*45.24

ASTMA335P5無縫鋼管-711*20

ASTM美標無縫鋼管-711*15.88

美標合金鋼管-711*100

ASTMA333GR.6無縫鋼管-457.2*12.7

ASTMA106B無縫管-1118*12.7

GRB美標鋼管-914*60

ASTMA335P5無縫鋼管-323.9*6.35

ASTMA333GR.6低溫鋼管-219.1*12.7

ASTMA333GR.6低溫無縫鋼管-660*80

ASTMA106B無縫鋼管-219.1*7.04

ASTMA333GR.6鋼管-457.2*19.05