GB/T 32151.9-2023 Chinese PDF (GB/T32151.9-2023) GB/T 18912-2024 4-2024_Chinese: Optics and photonics -

4-2024_Chinese: Optics and photonics - Microlens arrays - Part 4: Test methods for geometrical properties (Chinese: 光学和光子学 微透镜阵列 第4部分：几何特性测试方法)

English versions: GB/T 45112-2024

GB/T 22513-2023_Chinese: Petroleum and natural gas drilling and production equipment - Wellhead and tree equipment (Chinese: 石油天然气钻采设备 井口装置和采油树)

English versions: GB/T 13511

English versions: GB/T 44915-2024

GB/T 32151.9-2023 Chinese PDF (GB/T32151.9-2023) GB/T 18912-2024 4-2024_Chinese: Optics and photonics -GB T 32151. 9 2023_Chinese: Requirements of the carbon emissions accounting and reporting Part 9: Ceramic production enterprise (Chinese: 9) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 32151. 9 2023