GB/T 21397-2023 Chinese PDF (GB/T21397-2023) GB/T 45359.2-2025 GB/T 20424-2025_Chinese: The specification for

GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)

GB 28007-2024_Chinese: Technical specifications for the safety of infants and children furniture (Chinese: 婴幼儿及儿童家具安全技术规范)

GB 5083-2023_Chinese: General rules for designing the production facilities in accordance with safety and health requirements (Chinese: 生产设备安全卫生设计总则)

GB/T 45385-2025_Chinese: Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Vent valves (Chinese: 燃气燃烧器和燃烧器具用安全和控制装置 特殊要求 排气阀)

GB/T 21397-2023 Chinese PDF (GB/T21397-2023) GB/T 45359.2-2025 GB/T 20424-2025_Chinese: The specification forGB T 21397 2023_Chinese: Cotton harvesters (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21397 2023