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重庆煤矿安全仪器厂、抚顺煤炭研究所和四川省天府煤矿救护队联合研制的 AHG—3型氧气呼吸器,经工业性试验并于1977年4月由四川省煤炭工业局主持鉴定、定型。重庆煤矿安全仪器厂开始生产。该仪器主要供煤矿军事化矿山救护队队员在窒息性或有毒气体环境中进行救护时使用;也可供其它工矿企业受过专门训练的人员,在进行事故的预防或事故处理工作中使用。
AHG-3 oxygen respirator jointly developed by Chongqing Coal Mine Safety Instrument Factory, Fushun Coal Research Institute and Tianfu Coal Mine Rescue Team of Sichuan Province has been professionally tested and appraised and finalized by Sichuan Coal Industry Bureau in April 1977. Chongqing Coal Mine Safety Instrument Factory began production. The instrument is mainly used for coal mines militarized mines rescue team in the asphyxiating or toxic gas environment for ambulance use; but also for other industrial and mining enterprises have been specially trained personnel, in the accident prevention or accident handling work.