Double wall

Product Features
Superior-quality pipe& advanced heat treatment process, high strength &high toughness(especially under low temperature)
Smooth and long upset transition area & strong hard banding-extended product life
To meet or exceed requirements of the API 5D,API 7G, API Q1 & ISO9001
Equipment with advanced inspection instruments and a strictly quality controlling system, the final products are guaranteed to be of superior and stable quality
Due to our professional technicians & product flexibility, we are capable of meeting some customers’ specific requirement.