Standard design catalogue. Blind flanges. Design, dimensions and technical requirements (With Amendments No. 1, 2)
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Decree No. 90 of the Ministry of Health and Medical Industry of Russia dated 14.03.1996 (revision as of 06.02.2001) 'On the procedure for conducting preliminary and periodic medical examinations of workers and medical regulations for admission to the professional occupation'
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Work and rest schedule of working people during the cold season outdoors or in unheated rooms
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