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'2020'
China GB Standards List

 GB/T 2423.51-2020  
Environmental testing—Part 2: Test methods—Test Ke: Flowing mixed gas corrosion test

环境试验 第2部分:试验方法 试验Ke:流动混合气体腐蚀试验
 GB/T 2423.27-2020  
Environmental testing—Part 2: Test methods—Test method and guidance: Combined temperature or temperature and humidity with low air pressure tests

环境试验 第2部分:试验方法 试验方法和导则:温度/低气压或温度/湿度/低气压综合试验

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