GB/T 45231-2025 Chinese PDF (GB /T45231-2025) GB/T 23025-2024 English versions: GB/T 26718-2024

English versions: GB/T 26718-2024

1-2024_Chinese: Multimode optical fibres for telecommunication - Part 1: Sectional specification for category A1 multimode fibres (Chinese: 通信用多模光纤 第1部分：A1类多模光纤特性)

GB/T 45108-2024_Chinese: Recycling materials for platinum group metals (Chinese: 再生铂族金属原料)

GB/T 26718-2024_Chinese: Technical requirements for safety system of urban mass transit (Chinese: 城市轨道交通安全防范系统技术要求)

3-cyclobutanediol (Chinese: 食品安全国家标准 食品接触材料及制品 2

GB/T 45231-2025 Chinese PDF (GB /T45231-2025) GB/T 23025-2024 English versions: GB/T 26718-2024GB T 45231 2025_Chinese: Intelligent bed (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45231 2025