Russian standards PDF
Optics and photonics. Endoscope and endotherapeutic medical equipments. Requirements and test methods
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System of ensuring geometrical parameters accuracy in construction. Main principles
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System of ensuring geometrical parameters accuracy in construction. Manufacturing and assembling tolerances
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System of ensuring geometrical parameters accuracy in construction. Control of accuracy
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System of ensuring geometrical parameters accuracy in construction. Functional tolerances
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Сoncretes and mortars. Determination methods, rules of monitoring and evaluation of humidity in constructions
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