Russian standards PDF
Safety in emergencies. Procedure for the development of a list of measures for civil defense, measures for prevention of natural and man-caused emergencies in capital construction design
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End mills with brazed helical hardmetal tips with 7:24 taper shank. Basic dimensions
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Tourism and related services. Security of active types of tourism. General provisions
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Tourism and related services. Services of instructors-conductors. General requirements
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