Russian standards PDF
Phosphorus and inorganic phosphorus compounds. Method of determination of matters non-soluble in water
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Phosphorus and inorganic phosphorus compounds. Method of pH determination
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Phosphorus and inorganic phosphorus compounds. Method of chloride determination
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Fastening parts for piping single-sided yokes. Design. Dimensions
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Rhombic throw-away (indexable) carbide shims with 55 included angle. Design and dimensions
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