GB/T 25444.5-2023 Chinese PDF (GB/T25444.5-2023) GB/T 26334-2023 1-2025_Chinese: Optics and photonics -

1-2025_Chinese: Optics and photonics - Specifications for telescopic sights - Part 1: General-purpose instruments (Chinese: 光学和光子学 瞄准望远镜规范 第 1 部分：普通性能仪器)

1-2024_Chinese: Water chilling(heat pump) packages using the vapor compression cycle - Part 1: Water chilling(heat pump) packages for industrial and commercial and similar applications (Chinese: 蒸气压缩循环冷水（热泵）机组 第1部分：工业或商业用及类似用途的冷水（热泵）机组)

2-2025_Chinese: Particle─Separation performance test for particle size separator - Part 2: Divided flow method (Chinese: 颗粒 粒度切割器切割性能测试 第2部分：分流法)

English versions: GB/T 36545-2023

GB/T 5766-2023_Chinese: Test method of Rockwell hardness for friction materials (Chinese: 摩擦材料洛氏硬度试验方法)

GB/T 25444.5-2023 Chinese PDF (GB/T25444.5-2023) GB/T 26334-2023 1-2025_Chinese: Optics and photonics -GB T 25444. 5 2023_Chinese: Mobile and fixed offshore units Electrical installations Part 5: Mobile units (Chinese: 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25444. 5 2023