GB - Chinese national standards

Veiling glare of optical systems - Methods of measurement

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Woodruff keys--Normal form

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Engineering electrostatic copiers

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Countersunk head nib bolts

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Radio frequency identification(RFID) of stationary lead acid cells and monoblocs—Tentative requirements

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Test method of electrolytic conductivity analyzers

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Spectrum reference photovoltaic cells

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Electrical characteristics of balanced voltage digital interface circuits

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Interface between data terminal equipment and automatic calling equipment for data communication

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Plastic or rubber insulated telephone cords - Part 1: General

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