spiral weld carbon steel pipe 1. Grade: Q345B, API X42 - X80, ... , L555, J55, N80 2. Standard: SY/T5037-2000, GB/T Spiral weld carbon steel pipeSSAW (Spirally Submerged Arc Welding) pipes are ... Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.Advantage of SSAW Steel Pipe1. Both sides of ...