GB 44172-2024 Chinese PDF GB/T 14600-2025 GB/T 45016-2024_Chinese: Test methods for

GB/T 45016-2024_Chinese: Test methods for mechanical automatic tensioner of accessory belt drive system of engine (Chinese: 发动机附件带传动系统机械式自动张紧轮试验方法)

English versions: GB/T 45208-2025

English versions: GB/T 45446-2025

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)

socket-outlets and couplers for industrial purposes - Part 6: Direct current(DC) plugs

GB 44172-2024 Chinese PDF GB/T 14600-2025 GB/T 45016-2024_Chinese: Test methods forGB 44172 2024_Chinese: Safety management requirements for hot work in shipyard (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 44172 2024