DIN EN ISO 15614-1:2020-05
Действует
Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2017 + Amd 1:2019); German version EN ISO 15614-1:2017 + A1:2019
— 56 стр.