GB - Chinese national standards

Directives for gas service

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Plastic windows and doors for buildings

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Technical requirements of gas monitoring for sewer and septic tanks

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Test method for In-plane shear properties of composite materials

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Plain bearings—Terms, definitions, classification and symbols—Part 1: Design, bearing materials and their properties

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Plain bearings—Terms, definitionsclassification and symbols—Part 2Friction and wear

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Plain bearings—Terms, definitionsclassification and symbols—Part 3: Lubrication

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Plain bearings - Terms, definitionsclassification and symbols - Part 4Basic symbols

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Plain bearings—Terms, definitions, classification and symbols—Part 5:Application of symbols

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Plain bearings—Terms, definitions, classification and symbols—Part 6Abbreviated terms

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