GB - Chinese national standards

Technical requirements for hot working of sea going transport ships

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Test method for measuring flat length wafers of silicon and other electronic materials

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Method for measuring crystallographic orientation of flats on single-crystal silicon slices and wafers by X-ray techniques

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Practice for conversion between resistivity and dopant density for boron-doped, phosphorus-doped, and arsenic-doped silicon

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Self-locking nutsreduced hexagon

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Metallic powder-Determination of the specific surface area - Method of nitrogen adsorption

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Division and evaluation for catering enterperises grade

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Vehicle marking of dangerous goods for road transportation

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Guide to acceptance sampling inspection

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Regulation of hot washing for electric power apparatus

Available languages: English, Chinese

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