spiral weld carbon steel pipe 1. Grade: Q345B, API X42 - X80, L245, L555, J55, N80 2. Standard: SY/T5037- ... , J55, N803. Standard: SY/T5037-2000, GB/T9711.1-97, API Spec 5LSpecification of SSAW Steel Pipe:1. Outside Diameter: 219~2420mm ... ,J55, N805. Standard: SY/T5037-2000, GB/T9711.1-97, API Spec 5L6. Packing: Plastic plugs in both ends, Hexagonal bundles of ...