GB/T 4706.21-2024 Chinese PDF (GB/T4706.21-2024) GB/T 18910.64-2025 GB/T 2881-2023_Chinese: Silicon metal (Chinese:

GB/T 2881-2023_Chinese: Silicon metal (Chinese: 工业硅)

YY/T 1930-2024_Chinese: Medical device clinical evaluation - Terms and definitions (Chinese: 医疗器械临床评价 术语和定义)

4-2024_Chinese: Code of practice for terrestrial wildlife and its habitat survey - Part 4: Birds (Chinese: 陆生野生动物及其栖息地调查技术规程 第4部分：鸟类)

4-2025_Chinese: Test methods of flat panel display glass substrate - Part 4: Mechanical properties (Chinese: 平板显示器基板玻璃测试方法 第4部分：力学性能)

43-2024_Chinese: Requirements of the greenhouse gas emissions accounting and reporting - Part 43: Lead smelting enterprise (Chinese: 温室气体排放核算与报告要求 第43部分：铅冶炼企业)

GB/T 4706.21-2024 Chinese PDF (GB/T4706.21-2024) GB/T 18910.64-2025 GB/T 2881-2023_Chinese: Silicon metal (Chinese:GB T 4706. 21 2024_Chinese: Safety of household and similar electrical appliances Part 21: Particular requirements for microwave ovens, including combination microwave ovens (Chinese: 21,) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 4706. 21 2024