Circular No. 02/2012/TT-BXD dated June 12, 2012 of the Ministry of Construction guiding a number of contents about maintaining civil constructions, building material industry constructions, urban technical infrastructural constructions

Circular No. 02/2012/TT-BXD dated June 12, 2012 of the Ministry of Construction guiding a number of contents about maintaining civil constructions, building material industry constructions, urban technical infrastructural constructions