... (LSAW Pipes) for low pressure liquid delivery of API, ASTM, GB, EN, DIN StandardsOur production method for Longitudinal Submerge-arc Welded ... lining are a few examples.SPECIFICATIONS:Quality Standards: API, ASTM, GB, EN, DINGrades: API5L A-X80; ASTM A53, A106 ... , GB/T9711 L190-L555 etc.Outside Diameter: Φ406mm- 1626mm (16" - 64" ) ...