cdn.danluat.vn:4433 QUY CHUÅN KY THU4T QUÓc GIA vÈ NHA CHUNG CIJ' National technical...
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cdn.danluat.vn:4433 QUY CHUÅN KY THU4T QUÓc GIA vÈ NHA CHUNG CIJ' National technical regulation on apartment buildings 1. QUY Ð!NH CHUNG 1.1 Pham vi diêu chinh I. 1.1 Quy chuån