SY 6423.2-2013 Non-destructive testing methods for pressure-bearing steel pipes in the oil and gas industry Part II: Automatic ultrasonic testing of longitudinal and/or transverse imperfections in welded steel pipe welds (English Version)
1970SY 6423.2-2013 Non-destructive testing methods for pressure-bearing steel pipes in the oil and gas industry Part II: Automatic ultrasonic testing of longitudinal and/or transverse imperfections in welded steel pipe welds