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PNST 495-2020
Construction works and standard processes. Additive technologies. The use of 3D printing in construction. General requirements
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GOST ISO 23551-1-2015
Safety and control devices for gas burners and gas-burning appliances. Particular requirements. Part 1. Automatic and semi-automatic valves
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GOST 23862.19-79
Rare-earth metals and their oxides. Method of determination of titanium
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