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DIN EN ISO 16283-1/A1:2016-07

Проект
Acoustics - Field measurement of sound insulation in buildings and of building elements - Part 1: Airborne sound insulation - Amendment 1 (ISO 16283-1:2014/DAM 1:2016); German and English version EN ISO 16283-1:2014/prA1:2016
DIN EN ISO 16283-1/A1:2016-07
Проект