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GOST 22552.1-2019
Quartz sand, ground sandstone, quartzite and veiny quartz for glass industry. Methods for determination of silicon dioxide
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€10
GOST R 71543-2024
Geodesy and cartography. Input control of source cartographic materials. Basic requirements
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€25
GOST R EN 986-2011
Textile floor coverings. Tiles. Determination of dimensional changes due the effects of varied water and heat conditions and distortion out of plane
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€10