Dezhou Zhengdi Air Conditioning Products Co., Ltd. is a private enterprise located in the fiberglass production base, Lüquan Town Development Zone, Wucheng, Shandong. The company's main products include a series of dampers: chimney fire damper, bathroom check valve, chimney fire damper, kitchen fire damper, fire check valve, and a series of fans: axial flow fan, roof fan, mixed flow fan, inclined flow fan, air outlet series, etc. Our company integrates the manufacturing, sales, installation, and service of central air conditioning terminal equipment. The chimney fire damper has obtained a national patent certificate and has passed the inspection by the "National Quality Supervision and Inspection Center for Fixed Fire Extinguishing Systems and Fire Resistant Components." Our products are mainly aimed at the fields of central air conditioning ventilation and cooling, pharmaceuticals and chemicals, building malls, metallurgy and mining, textiles and environmental protection, and we have already established partnerships with many related enterprises. All employees of Zhengdi will always regard customers as God, adhere to integrity as the principle, and warmly welcome domestic and foreign merchants to discuss business, joint ventures, cooperation, and create great achievements together.