GB/T 16915.2-2024 Chinese PDF (GB/T16915.2-2024) GB/T 45234.302-2025 2-2025_Chinese: Optics and photonics -

2-2025_Chinese: Optics and photonics - Test methods for telescopic systems - Part 2: Binoculars (Chinese: 光学和光子学 望远镜系统试验方法 第2部分：双筒望远镜)

English versions: GB/T 29117-2025

English versions: GB/T 6930-2024

English versions: GB/T 45136-2024

English versions: GB/T 45032-2024

GB/T 16915.2-2024 Chinese PDF (GB/T16915.2-2024) GB/T 45234.302-2025 2-2025_Chinese: Optics and photonics -GB T 16915. 2 2024_Chinese: Switches for household and similar fixed electrical installations Part 2 1: Particular requirements for electronic control devices (Chinese: 2 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 16915. 2 2024