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  •  China "GB" Standards List:
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    GB/T 7190.3-2019 Mechanical draft cooling towers—Part 3：Closed circuit cooling towers

    China National - GB Standards
    GB/T 6730.80-2019 Iron ores—Determination of mercury content—Cold atomic absorption spectrometric method

    China National - GB Standards
    GB/T 6730.79-2019 Iron ores—Determination of cadmium content—Hydride generation-atomic fluorescence spectrometric method

    China National - GB Standards
    GB/T 6730.78-2019 Iron ores—Determination of cadmium content—Graphite furnace atomic absorption spectrophotometric method

    China National - GB Standards
    GB/T 6730.77-201 Iron ores—Determination of arsenic content—Hydride generation-atomic fluorescence spectrometric method

    China National - GB Standards
    GB/T 6730.56-2019 Iron ores—Determination of aluminum content—Flame atomic absorption spectrometric method

    China National - GB Standards
    GB/T 6202-2019 Wide belt sanding machine

    China National - GB Standards
    GB/Z 6113.3-2019 Specification for radio disturbance and immunity measuring apparatus and methods—Part 3: CISPR technical reports

    China National - GB Standards
    GB/T 5959.1-2019 Safety in installations for electroheating and electromagnetic processing—Part 1: General requirements

    China National - GB Standards
    GB/T 5714-2019 Textiles—Tests for colour fastness—Colour fastness to sea water

    China National - GB Standards
    GB/T 5031-2019 Tower crane

    China National - GB Standards
    GB/T 4817-2019 Broad-leaved sawn timber

    China National - GB Standards
    GB/T 4798.1-2019 Classification of environmental conditions—Classification of groups of environmental parameters and their severities Part1:—Storage

    China National - GB Standards
    GB/T 4392-2019 Slugging open-end wrenches and slugging box-end wrenches

    China National - GB Standards
    GB/T 4333.1-2019 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method

    China National - GB Standards
    GB/T 3903.7-2019 Footwear—Test methods for whole shoe—Ageing conditioning

    China National - GB Standards
    GB/T 3903.43-2019 Footwear—Test methods for uppers，lining and insocks—Seam strength

    China National - GB Standards
    GB/T 3903.42-2019 Footwear—Test methods for uppers，lining and insocks—Colour migration

    China National - GB Standards
    GB/T 3903.41-2019 Footwear—Test methods for uppers and lining—Flex resistance

    China National - GB Standards
    GB/T 3903.39-2019 Footwear—Test methods for uppers—Delamination resistance

    China National - GB Standards
    GB/T 3903.34-2019 Footwear—Test methods for shanks—Longitudinal stiffness

    China National - GB Standards
    GB/T 3903.33-2019 Footwear—Test methods for insoles and insocks—Water absorption and desorption

    China National - GB Standards
    GB/T 3781.6-2019 Acetylene black—Part 6：Determination of apparent specific volume

    China National - GB Standards
    GB/T 3781.5-2019 Acetylene black—Part 5:Determination of grit content

    China National - GB Standards
    GB/T 3078-2019 Quality structural steel cold drawn bars

    China National - GB Standards
    GB/T 2294-2019 Determination of softening point in solid products of coal carbonization

    China National - GB Standards
    GB/T 2078-2019 Dimensions of indexable hardmetal (carbide) inserts with rounded corners,with cylindrical fixing hole

    China National - GB Standards
    GB/T 752-2019 Potassium chlorate for industrial use

    China National - GB Standards
    GB/T 593-2019 Marine packed cocks

    China National - GB Standards
    GB/T 339-2019 Synthetic phenol for industrial use

    China National - GB Standards

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