Russian standards

Nature protection. Soils. General requirements for methods of determining contaminants

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Nature protection. Recultivation of land. Method of determining pH water extraction of overburden and enclosing rocks

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Carbide drills. Types and main sizes

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Carbide annular drills. Main sizes

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Carbide detachable chisel bits. Main sizes

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Turret lathe collets with eccentrically positioned cylindrical hole. Design and dimensions

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