GB/T 20871.12-2024 Chinese PDF (GB/T20871.12-2024) GB/T 45159.3-2024 1-2025_Chinese: Norm of water intake

1-2025_Chinese: Norm of water intake for industry in the Yellow River basin - Part 1: Thermal power production (Chinese: 黄河流域工业用水定额 第1部分：火力发电)

English versions: YY/T 1926

English versions: GBZ44946-2024

English versions: GB/T 45501-2025

2-2025_Chinese: Optics and photonics - Specifications for telescopic sights - Part 2: High-performance instruments (Chinese: 光学和光子学 瞄准望远镜规范 第 2 部分：高性能仪器)

GB/T 20871.12-2024 Chinese PDF (GB/T20871.12-2024) GB/T 45159.3-2024 1-2025_Chinese: Norm of water intakeGB T 20871. 12 2024_Chinese: Organic light emitting diode(OLED) displays Part 1 2: Terminology and letter symbols (Chinese: 1 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20871. 12 2024