Spiral Submerged Arc Welded Pipes, Standard: API 5L Gr.B,---X-80, OD: 219mm-3048mm, ... thickness: 25.4 mm, Maximum Le Spiral Submerged Arc Welded Pipes, Standard: API 5L Gr.B,---X-80, OD: 219mm- ... Product DescriptionFeatures:1) Product name: Spiral Submerged Arc Welded steel Pipes (SSAW)2) Place of Origin: Liaoning, China 3) Material: ... DNV ISO 14001, DNV OHSAS 18001 Spiral Submerged Arc Welded Pipes