
Certification of operators of contact butt flash welding process and welders of thermite welding of railway rails. General requirements
NORMA vydaná dňa 1.9.2019
Designation standards: GOST R 58443-2019
Publication date standards: 1.9.2019
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST