GB - Chinese national standards

Test method for tensile property of C/C composites

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Surface chemical analysis—Recording and reporting data in X-ray photoelectron spectroscopyXPS

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Analytical method of the chemical composition in the glass containing lead

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Mobile suspended work platform

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Escalator steps and moving walk pallets

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Main drive curved tooth coupling for cold rolling mill units

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Main drive universal coupling for cold rolling mill units

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Recommended practice for riser fatigue

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General specification for mechanical seals

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Designations for synthetic quartz crystals

Available languages: English, Chinese

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