c
Standards compliance Design and Manufacture: Japanese standard E101, JB/T3595, DL/T531 standards. Face to face(end to end): E101, JB/T2766, GB/T15188.1 Pressure and temperature ratings for E101, JB/T3595 standard Butt welded end: GB12224, JB/T3595, ASME B16.25 Test and inspection: E101, JB/T9092