1. longitudinal seam arc welded pipes (LSAW PIPES) for the oil & gas pipelines
2. with right international qualifications and international REFRANCE LISTS
3. Specification:
　 a. Diameter - 20 - 100英吋
　 b. Thickness of the plate - Standard to heavy wall
　 c. Length of the pipe – 12公尺
　 d. Standard requirement of the pipe - API 5L grades from B to X70

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