GB - Chinese national standards

Colour filter glass test methods--Resistance UV irradiating stability

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Chemical analysis methods of glass, glass marble and vitreous fiber

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General specification for solid state lasers

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Requirements and measurement methods of electrical performance for duplexers used in the mobile services

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Functional classification of wheelchair basketball and swimming for disabled athletes

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Functional classification of shooting and table tennis for disabled athletes

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Enterprise standards system—Requirement

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Enterprise standards system—Product realization

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Enterprise standards system—Fundamental supports

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The lost workdays standard for injury accidents

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