GB/T 21649.1-2024 Chinese PDF (GB/T21649.1-2024) GB 10408-2025 YY 1105-2024_Chinese: Electirc apparatus for

YY 1105-2024_Chinese: Electirc apparatus for gastric lavage (Chinese: 电动洗胃机)

1-2025_Chinese: Configuration file exchange for industrial control system HMI - Part 1: General information (Chinese: 工业控制系统人机接口组态文件交互 第1部分：通用信息)

20-2025_Chinese: Methods for chemical analysis of tungsten concentrates - Part 20: Determination of mercury content - Solid sampling and direct mercury analysis method (Chinese: 钨精矿化学分析方法 第20部分：汞含量的测定 固体进样直接测定法)

10-2024_Chinese: Terminology for telecommunication - Antenna (Chinese: 电信术语 天线)

English versions: GB/T 20840

GB/T 21649.1-2024 Chinese PDF (GB/T21649.1-2024) GB 10408-2025 YY 1105-2024_Chinese: Electirc apparatus forGB T 21649. 1 2024_Chinese: Particle size analysis Image analysis methods Part 1: Static image analysis methods (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21649. 1 2024