Non-destructive testing of steel tubes—Automated ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for verification of hydraulic leak-tightness
NORMA vydána dne 11.9.2015
Designation standards: GB/T 18256-2015
Publication date standards: 11.9.2015
Country: Chinese technical standard
Kategorie: Technické normy GB