Russian standards PDF
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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Tourism and related services. Excursion services. General requirements
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Gas-insulated metal-enclosed switchgear for nominal voltages 110 kV and over. General specifications
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