GB - Chinese national standards

Testing method of copper alloy tools for explosive atmospheres

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Expansible graphite

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Calcium silicate thermal insulation

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Semiconductor devices—Scan based ageing level estimation for semiconductor devices

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Test methods for elastic moduli of fine ceramics (advanced ceramics, advanced technical ceramics) - Bending method

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Test methods for thermal stability of silica glass

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Chemical reagent - 5-Sulfosalicylic acid dihydrate

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Rubber - Determination of the burning

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Reciprocating rubber seals--Typesdimensions and tolerances--Part 1:Rubber seals on one-way

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Reciprocating rubber seals--Typesdimensions and tolerances--Part 2:Rubber seals on two-way

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