PAVLN Security Technology (磐龙安全技术有限公司) makes fire suppression systems, drawing on nearly 30 years in fire protection. Its range covers HFC-227ea and FK-5-1-12 gas systems, fire detection tube systems, high-pressure water mist, foam, kitchen suppression, transformer protection, smoke curtains and fire-resistant shutters, supplied to projects worldwide from Ningxiang High-tech Zone, Changsha. Its fire detection tube extinguishing units hold fire product certifications 5982021ZY100004, 5982025ZY100012 and 5982020ZY100019 from the Tianjin Fire Research Institute of the Ministry of Emergency Management.