Hebei Dongyi Fire‑Fighting Equipment Co., Ltd., registered capital 10 million RMB, offers reliable fire‑fighting products under strict quality control. Cooperated with Hefei Zhongke Chuangwei, we develop perfluorohexanone‑series products including fire‑extinguishing patches, blankets, ropes, coatings, tapes and emergency kits. Supported by USTC’s research achievements, we realize mass production of complex‑structure micro‑capsules with internationally‑advanced technology.