SSBT. Occupational Safety Standards System. Key provisions
ССБТ. Система стандартов безопасности труда. Основные положения |
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MinEconDev 31-03-43Affiliates and representatives of legal persons … |
GOST R 12.3.047-98SSBT. Occupational Safety Standards System. … |
GOST 21.508-85Construction Design and Estimate Documentation. … |