Specification :

We are professionfal manufacturers of large diameter spiral steel pipe with history of 14 years. The diameter of pipe:219mm-2520mm, wallthickness:6mm-25mm, standard:API 5L, ASTM A252, steel grade: API A,B,X42,X46,X52,X56,X60,X65,X70. We accept the third party inspection such as SGS, BV,GL etc, our produce export to Iran, Portugal,Argentina, Spain, Canada, South Korea, Vietnam, Sigapore etc. We will supply high quality pipes to all our clients.