Tianjin TPCO & TISCO Welding Pipe Corporation successfully achieved API 5L.& API 5CT certificates for PSL2

Tianjin TPCO & TISCO Welding Pipe Corporation achieved the API 5L & API 5CT certificates for PSL2 on Mar 26th, 2013. On one hand, The grade for ERW line pipe was extended up to X80 and covered service and/or off-shore service in annex H, J. On the other hand, the manufacture of ERW casing was covered at Groups 1, 2 and 3, N80(1)/PSL 2, N80(Q)/PSL 2, L80(1)/PSL 2, P110/PSL 2.