API5L X42 Carbon steel LSAW STEEL PIPE
Huayang is the largest ERW&LSAW manufacturer with API,CE,Gost,ISO certifications
Huayang is the largest ERW&LSAW manufacturer with API,CE,Gost,ISO certifications
Internal Corrosion Protection for Steel Pipes: Epoxy coating, cement mortar lining etc.
The largest ERW&LSAW manufacturer in north China with API,CE,GOST ,ISO certifications.
annual output 800,000 tons
the largest ERW&LSAW production factory with API,CE,GOST certifications
Huayang is the largest ERW&LSAW manufacturer with API,CE,Gost,ISO certifications