Spiral Submerged Arc Welded Pipes, Standard: API 5L Gr.B,--- ... 219mm-3048mm, Maximum wall thickness: 25.4 mm, Maximum Le Spiral Submerged Arc Welded Pipes, Standard: API 5L Gr.B,---X ... 4 mMaking Zero Defect Detailed Product DescriptionFeatures:1) Product name: Spiral Submerged Arc Welded steel Pipes (SSAW)2) Place of ... , DNV ISO 9001, DNV ISO 14001, DNV OHSAS 18001 Spiral Submerged Arc Welded Pipes