GB/T 2900.65-2023 Chinese PDF (GB/T2900.65-2023) GB/T 21218-2023 GB/T 45356-2025_Chinese: Polypropylene(PP) piping systems

GB/T 45356-2025_Chinese: Polypropylene(PP) piping systems for non-pressure buried drainage and sewerage (Chinese: 无压埋地排污、排水用聚丙烯（PP）管道系统)

1-2025_Chinese: Technical code of practice for evaluation of resistance to diseases and insect pests in wheat - Part 1: Stripe(yellow) rust (Chinese: 小麦抗病虫性评价技术规程 第1部分：条锈病)

trailers and combination vehicles mass parameters measurement method (Chinese: 汽车、挂车及汽车列车质量参数测量方法)

GB/T 45199-2025_Chinese: Assessment of the endangerment degree of poultry genetic resources (Chinese: 家禽遗传资源濒危等级评定)

GB/T 40425

GB/T 2900.65-2023 Chinese PDF (GB/T2900.65-2023) GB/T 21218-2023 GB/T 45356-2025_Chinese: Polypropylene(PP) piping systemsGB T 2900. 65 2023_Chinese: Electrotechnical terminology Lighting (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2900. 65 2023