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English versions: GB/T 21037-2024
GB 20052-2024_Chinese: Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers (Chinese: 电力变压器能效限定值及能效等级)
GB/T 44942-2024_Chinese: Footwear - Test method for insoles and insocks - Dimensional change after cycle of wetting and drying (Chinese: 鞋类 内底和内垫试验方法 干湿循环尺寸变化率)
GB/T 20244-2025_Chinese: Fiber optic elements for image transmission (Chinese: 光学纤维传像元件)
English versions: GB/T 45050-2024
GB/T 3510-2023 Chinese PDF (GB/T3510-2023) GB/T 45601-2025 English versions: GB/T 21037-2024GB T 3510 2023_Chinese: Rubber, unvulcanized Determination of plasticity Rapid plastimeter method (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 3510 2023
