German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Sheet metal roofing and wall covering work— 30 стр.
Medical gas pipeline systems - Part 1: Pipeline systems for compressed medical gases and vacuum (ISO 7396-1:2016 + Amd 1:2017); German version EN ISO 7396-1:2016 + A1:2019— 209 стр.