Electric plugs-and-socket connectors for household and similar purposes. Part 2-3. Particular requirements for socket-outlets without interlock for fixed installations
Medical electrical equipment. Part 2. Particular requirements for the safety of X-ray source assemblies and X-ray tube assemblies for medical diagnosis
Automobile roads of general use. Mineral materials for preparing coarse-grained asphalt concrete mixtures. Method for determination of density and absorption
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