GB/T 45315-2025 Chinese PDF (GB /T45315-2025) GB/T 45234.302-2025 GB/T 27995

GB/T 27995

4-2025_Chinese: Test methods of rare earth phosphors for LED - Part 4: Determination of high temperature and high humidity property (Chinese: LED用稀土荧光粉试验方法 第4部分：高温高湿性能的测定)

GB/T 45344-2025_Chinese: General technical requirements for fabricated and prefabricated gas piping used in buildings (Chinese: 建筑用装配式预制燃气管道通用技术条件)

GB/T 20840

GB/T 44973-2024_Chinese: Requirements and evaluation specification for ice sport event (Chinese: 冰上运动赛事活动要求及评估规范)

GB/T 45315-2025 Chinese PDF (GB /T45315-2025) GB/T 45234.302-2025 GB/T 27995GB T 45315 2025_Chinese: Technical requirements and test methods of vehicular information interactive systems based on LTE V2X direct communication (Chinese: LTE V2X) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45315 2025