Redfire Safety (Tianjin) Technology Co., Ltd. is mainly engaged in the development, certification and marketing of high-rise escape constant-speed slow-down equipment. It is currently the only constant-speed slow-down device manufacturer that has passed the national 3C compulsory certification. The products have been tested by the National Fire Equipment Quality Supervision and Inspection Center. The constant-speed slow-down device has passed the "European 100m and 100kg EN341-2011" test and obtained one US invention patent, four Chinese invention patents, and three utility model patents. The products have been featured in CCTV's "I Love Invention" (twice 2012 and 2018), "Invention Dreamworks" (2013) and "CCTV News" (2018).

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