Russian standards PDF
Installations for final water treatment. General technical requirement
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Raw clay in the production of clay powders for drilling muds. Method of determination of suspension sedimentation index
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Dark-coloured raw material for surfactants. Method of determination of an acid value
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Basic norms of interchangeability. Tolerances for sizes above 10000 up to 40000 mm
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Shell counterbore arbors with removable guides. Design and dimensions
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