
Non-destructive testing of steel pipes—Phased-array ultrasonic automatic testing method for weld seam of submerged arc-welded steel pipes
NORMA vydaná dňa 2.7.2026
Designation standards: GB/T 47876-2026
Note: K dispozici od: únor 2027
Publication date standards: 2.7.2026
Country: Chinese technical standard
Kategória: Technické normy GB