GB/T 39315.4-2024 Chinese PDF (GB/T39315.4-2024) GB/T 20299.3-2024 11-2023_Chinese: Internal combustion engines -

11-2023_Chinese: Internal combustion engines - Piston rings - Part 11: Half keystone rings made of cast iron (Chinese: 内燃机 活塞环 第11部分：楔形铸铁环)

22-2023_Chinese: Mechanical structures for electrical and electronic equipment - Dimensions of mechanical structures of the 482

English versions: GB/T 45347-2025

GB/T 45345-2025_Chinese: Metallic and other inorganic coatings - DC magnetron sputtered silver coatings for engineering purposes - Measurement of coating adhesion (Chinese: 金属及其他无机覆盖层 工程用直流磁控溅射银镀层 镀层附着力的测量)

GB 31648-2025_Chinese: National food safety standard - Code for pollution control of dioxins and polychlorinated biphenyls in food (Chinese: 食品安全国家标准 食品中二噁英及多氯联苯污染控制规范)

GB/T 39315.4-2024 Chinese PDF (GB/T39315.4-2024) GB/T 20299.3-2024 11-2023_Chinese: Internal combustion engines -GB T 39315. 4 2024_Chinese: General resource of military and civilian Data model Part 4: Equipment Health services equipment (Chinese: 4 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 39315. 4 2024