GB - Chinese national standards

General metadata for fundamental part and component

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Information technology—Telecommunications and information exchange between systems—Heterogeneous networks convergence and scalability of community energy-saving control network

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Information security technology—Certificate request and application protocol based on multiple channels

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General metadata for fundamental manufacturing process

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Cyber-physical systems—Reference architecture

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Cyber-physical systems—Terminology

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General requirements of internet of things based on public telecommunication network

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Non-destructive testing instruments—Ultrasonic time-of-flight diffraction instrument—Technical requirements

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Laboratory instruments and equipment—Taxonomy

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RF technical requirements and test methods for 24GHz vehicle radio equipment

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