Shanghai Changzhu Valve Co., Ltd. Operates domestic and foreign brands: TYCO, VIKING, Victaulic, Reliable (RASCO), PotTER, Shanghai Jindun, Zhejiang Ruicheng (Ruicheng Great Wall), Cuilian Sichuan Fei, sales and operation products: Concealed nozzle, quick response spray head, early suppression and rapid response ESFR spray head, high-speed water mist spray head, dry sagging spray head, high-pressure fine water mist spray head, chimney pipe high-temperature spray head, foam Sprinkler heads, tunnel-specific nozzles, explosion-proof signal butterfly valves, delayed water flow indicators, wet alarm valves, explosion-proof rain shower valves, PIV valves, direct-read flow meters, gate valve signal monitoring switches, pre-acting valves and other products have been recognized by most consumers and enjoys a high reputation among consumers. The company has established stable cooperative relationships with many manufacturers for a long time. At the same time, the certificates obtained: FM certification, UL certificat