GB/T 45180-2024 Chinese PDF (GB /T45180-2024) GB/T 31968-2025 3-2024_Chinese: Optics and photonics -

3-2024_Chinese: Optics and photonics - Microlens arrays - Part 3: Test methods for optical properties (Chinese: 光学和光子学 微透镜阵列 第3部分：光学特性测试方法)

GB/T 45070-2024_Chinese: Specification of take-back on waste electrical and electronic product (Chinese: 废弃电器电子产品回收规范)

GB/T 15340-2025_Chinese: Rubber

72-2024_Chinese: Communication networks and systems for power utility automation - Part 7-2: Basic information and communication structure - Abstract communication service interface(ACSI) (Chinese: 电力自动化通信网络和系统 第7-2部分：基本信息和通信结构 抽象通信服务接口（ACSI）)

GB/T 45180-2024 Chinese PDF (GB /T45180-2024) GB/T 31968-2025 3-2024_Chinese: Optics and photonics -GB T 45180 2024_Chinese: General requirements of age friendly training equipment (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45180 2024