GB/T 16895.22-2022 Chinese PDF (GB/T16895.22-2022) GB/T 29117-2025 monoculars and spotting scopes -

monoculars and spotting scopes - Part 2: High performance instruments (Chinese: 光学和光子学 双筒望远镜、单筒望远镜和观测镜规范 第2部分：高性能仪器)

24-2025_Chinese: Methods for chemical analysis of magnesium and magnesium alloys - Part 24: Determination of trace impurity elements contents - Glow discharge mass spectrometry (Chinese: 镁及镁合金化学分析方法 第24部分：痕量杂质元素的测定 辉光放电质谱法)

4-2024_Chinese: Grain and oil storage - Monitoring and control system of stored-grain condition - Part 4: Information exchange interface protocol (Chinese: 粮油储藏 粮情测控系统 第4部分：信息交换接口协议)

English versions: GBZ45378-2025

GB/T 16895.22-2022 Chinese PDF (GB/T16895.22-2022) GB/T 29117-2025 monoculars and spotting scopes -GB T 16895. 22 2022_Chinese: Low voltage electrical installations Part 5 53: Selection and erection of electrical equipment Devices for protection for safety, isolation, switching, control and monitoring (Chinese: 5 53 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 16895. 22 2022