... , Q235A, Q235B, Q345, ASTM A53/106, ASTMA500, ST375.Standards:GB/T3091-2001, GB/T9711.1-1997, GBT8162, GBT8163, GBT3087, API 5L 6.Applications:civil ... of LSAW steel pipe, SSAW (spiral) steel pipe, ERW steel pipe and other pipes in China, and the steel pipes can be supplied according to GB, ASTM, API, DIN, JIS ...