Guangdong Haijie Fire Technology (广东海捷消防科技有限公司) makes cabinet, piped and hanging HFC-227ea systems, IG541 and high-pressure CO2 systems, fire-detection-tube devices, pressure relief vents and system fittings at Dongchong, Nansha. It also designs and installs fire alarm, hydrant, sprinkler and smoke extraction systems for factories, hotels, schools and hospitals. Its fire-detection-tube and dry powder devices hold fire product certifications 5982022ZY100044, 5982022ZY100041 and 5982022ZY090008 from the Tianjin Fire Research Institute of the Ministry of Emergency Management.