ZH
RU
ES

country na

country na, Total:4 items.

In the international standard classification, country na involves: Installations in buildings.

German Institute for Standardization, country na

• DIN EN 12831 Bb.1:2008 Heating systems in buildings - Method for calculation of the design heat load - National Annex NA

未注明发布机构, country na

• DIN EN 12831 Bei 1:2004 Heating systems in buildings – Procedure for calculating the standard heating load – National Annex NA
• DIN EN 12831:2004 Heating systems in buildings – Procedure for calculating the standard heating load – National Annex NA
• DIN EN 12831 Bei 1-A1:2005 Heating systems in buildings – Method for calculating the standard heating load – National Annex NA; Amendment A1

Others:   k /na, icp na, country na, na standard, country na, na country, eds na, standard na, test na, standard na, test na, Norm na, na principle, Determination of na, na country, detect na, na detection, na ion, na+ country, According to the country na.