GB/T 15558.4-2023 Chinese PDF (GB/T15558.4-2023) GB/T 24212-2025 English versions: GB/T 17469-2024

English versions: GB/T 17469-2024

GB/T 27069-2025_Chinese: Guidelines for the mutual recognition evaluation of product conformity assessment results (Chinese: 产品合格评定结果相互承认评价指南)

GB/T 45292-2025_Chinese: Technical specification for retreaded tyre production (Chinese: 轮胎翻新生产技术条件)

8-2025_Chinese: Technical code of practice for evaluation of resistance to diseases and insect pests in wheat - Part 8: Blossom midges (Chinese: 小麦抗病虫性评价技术规程 第8部分：吸浆虫)

YY/T 0107-2024_Chinese: A mode ultasonic biometer for ophthalmology scanner (Chinese: 眼科A型超声测量仪)

GB/T 15558.4-2023 Chinese PDF (GB/T15558.4-2023) GB/T 24212-2025 English versions: GB/T 17469-2024GB T 15558. 4 2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels Part 4: Valves (Chinese: PE 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15558. 4 2023