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GB/T 13930-2024_Chinese: Water ring vacuum pumps and compressors - Method for measurement of volume flow of gas (Chinese: 水环真空泵和水环压缩机 气量测定方法)
GB/T 45551-2025_Chinese: Technical specification for performance testing of honey bees (Chinese: 蜜蜂生产性能测定技术规范)
GB/T 2684-2025_Chinese: Test methods for foundry sands and molding mixtures (Chinese: 铸造用砂及混合料试验方法)
GB/T 15971-2023_Chinese: Specification for tour guide service (Chinese: 导游服务规范)
GB 30254-2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for cage three-phase high voltage induction motor (Chinese: 高压三相笼型异步电动机能效限定值及能效等级)
GB/T 20064.1-2023 Chinese PDF (GB/T20064.1-2023) GB/T 25045-2025 GB/T 13930-2024_Chinese: Water ring vacuumGB T 20064. 1 2023_Chinese: Reciprocating internal combustion engines Handle starting equipment Part 1: Safety requirements and tests (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20064. 1 2023
