
Instruction for determining the economic efficiency of using new technology, inventions and rationalization proposals in construction.
NORMA vydaná dňa 1.1.1979
Designation standards: SN 509-78
Publication date standards: 1.1.1979
The number of pages: 52
Approximate weight : 156 g (0.34 lbs)
Country: Russian technical standard
Kategória: SN