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)

English versions: GB/T 35319-2025

English versions: GB/T 43708-2025

English versions: GB 14166-2024

GB/T 42143-2022_Chinese: Specification for design and construction of steel containment vessel of pressurized water reactor nuclear power plant (Chinese: 压水堆核电厂钢制安全壳设计建造规范)

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