GB/T 33411-2025 Chinese PDF (GB /T33411-2025) GB/T 26849-2025 GB 23394-2024_Chinese: Respiratory protection -

GB 23394-2024_Chinese: Respiratory protection - Positive pressure self-contained closed-circuit compressed oxygen breathing apparatus (Chinese: 呼吸防护 正压式自给闭路压缩氧气呼吸器)

English versions: GB/T 23367

GB/T 24823-2024_Chinese: LED modules for general lighting - Performance specification (Chinese: 普通照明用LED模块 性能规范)

1-2025_Chinese: Norm of water intake for service industry in the Yellow River basin - Part 1: Hotel (Chinese: 黄河流域服务业用水定额 第1部分：宾馆)

GB/T 33411-2025 Chinese PDF (GB /T33411-2025) GB/T 26849-2025 GB 23394-2024_Chinese: Respiratory protection -GB T 33411 2025_Chinese: Guidelines for enzyme immunoassays kit (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 33411 2025