GB - Chinese national standards

Room air conditioner

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Mechanical connections of articulated bus

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General terminology for ship

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General terminology for ship—Part 1:Comprehension

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Chemical analysis of metallurgical products—General rule for flame atomic absorption spectrometric methods

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Chemical analysis of metallurgical products—General rule for spectrophotometric methods

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Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method

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Ferrotungsten—Determination of carbon content—Infrared absorption method

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Ferrotungsten - Determination of sulfur content - Infrared absorption method and combustion titration method

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Ferrotungsten - Determination of lead content - The polarographic method and inductively coupled plasma-atomic emission spectrometry

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