Helong Explosion-proof Electric (合隆防爆电气有限公司) is a national high-tech enterprise in Yueqing, Zhejiang, China’s centre for explosion-proof electrical manufacturing. Its plant covers more than 50,000 m². The company holds ISO 9001, ISO 14001, ISO 45001, ATEX and IECEx certification and supplies CNPC, Sinopec, CNOOC and others, exporting to more than 50 countries. Its range includes explosion-proof lighting and fire-protection products. Its fire emergency evacuation sign luminaires and emergency lighting luminaires hold fire product certifications 2026291815000205 and 2026291815000203 from the Tianjin Fire Research Institute of the Ministry of Emergency Management.