GB - Chinese national standards

Household sewing machines head—Method of sound power levels of noise emitted

Available languages: English, Chinese

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Bar code for commodity—Placement requirements for bar code symbol

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Information technology--Automatic identification and data capture techniques--Verification ofprint quality of bar code symbols

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Acoustics--Guide to standards on the measurement of airborne acoustical noise and evaluation ofits effects on human beings

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The classifications of carbon materials

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General rules for sampling and sample preparation of heavy nonferrous metals flotation concentrates in bulk

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Methods for sampling and sample preparation of flotation zinc concentrates in bulk

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Methods for sampling and sample preparation of flotation lead concentrates in bulk

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Methods for sampling and sample preparation of flotation copper concentrates in bulk

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Terminology of semiconductor materials

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