Ceramic and silicate bricks and blocks. Methods for water absorption and density determination and cold resistance testing
Кирпич и камни керамические и силикатные. Методы определения водопоглощения, плотности и контроля морозостойкости. |
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GOST 5781-82Hot-rolled steel for reinforcement of … |
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GTN 1993-32Regulations for the Construction and Safe … |
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Rostrud 7Organisation of Occupatonal Health Safety Rooms |