Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements (ISO 3834-1:2021); German version EN ISO 3834-1:2021— 15 стр.
Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements (ISO 3834-1:2005); German version EN ISO 3834-1:2005— 12 стр.
Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements (ISO/DIS 3834-1:2020); German and English version prEN ISO 3834-1:2020
Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements (ISO 3834-1:2005); German version EN ISO 3834-1:2005— 12 стр.
District heating pipes - Design and installation of thermal insulated bonded single and twin pipe systems for directly buried hot water networks - Part 2: Installation; German and English version EN 13941-2:2019— 195 стр.
