GB/T 25216-2024 Chinese PDF (GB/T25216-2024) GB/T 42143-2022 1-2025_Chinese: Particle - Separation performance

1-2025_Chinese: Particle - Separation performance test for particle size separator - Part 1: General principles (Chinese: 颗粒 粒度切割器切割性能测试 第1部分：通则)

GB/T 45650-2025_Chinese: Air source heat pump packages with carbon dioxide as refrigerants (Chinese: 二氧化碳空气源热泵机组)

English versions: GB/T 38624

57-2024_Chinese: Safety of household and similar electrical appliances - Part 57: Particular requirements for floor treatment machines and wet scrubbing machines (Chinese: 家用和类似用途电器的安全 第57部分：地板处理机和湿式擦洗机的特殊要求)

GB/T 25216-2024 Chinese PDF (GB/T25216-2024) GB/T 42143-2022 1-2025_Chinese: Particle - Separation performanceGB T 25216 2024_Chinese: Regional prediction methods for the danger of coal and gas outburst (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25216 2024