Shanghai Hongji Ventilation Equipment Co., Ltd. was established in 2006 with a registered capital of 10.5 million RMB. The company is located in Shanghai Xinghuo High tech Export Processing Zone and is a company that integrates research and development, production, operation, and installation of various new composite air duct systems. The company mainly produces phenolic composite air duct panels, polyurethane composite air duct panels, stainless steel composite air duct panels, glass magnesium composite air duct panels, color steel composite air duct panels, XPS composite air duct panels, glass fiber composite air duct panels, composite air duct special flanges, special adhesives, and special tools. All products have passed relevant national certifications, and four advanced composite panel production lines and advanced production processes have been introduced from abroad. The annual production capacity has exceeded 4 million square meters, and various products greatly meet market demand and have been widely used in the field of air ducts and exterior wall insulation. It has become a leader in the new composite air duct industry in China.