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Brazing and soldering. Method for detecting and determination of chemicals interlayer thickness

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Gauges for multy-start trapezoidal thread. Tolerances

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Unified system of corrosion and ageing protection. Metals, alloys, metallic and non-metallic inorganic coatings. Permissible and impermissible contacts with metals and non-metals

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Tinned copper wire for electrotechnical purposes. Method for determination of tinned covering quality

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Friction, wear and lubrication. Terms and definitions

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Medical face masks. Requirements and test methods

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