Jiangsu Changrui Environmental Protection is a leading ventilation duct manufacturer worthy of your in-depth understanding. With an 8,000-square-meter factory, the company specializes in manufacturing high-quality ductwork. We have long-standing partnerships with leading companies in diverse fields, including China Railway Construction Corporation, China National Nuclear Corporation, Haichen Group, the world's third-largest DRAM manufacturer, Nine Dragons Paper, Asia's largest containerboard producer, Haidilao, and Fudan University. For eight years, our team of researchers and designers has scientifically researched exhaust ducting, applying these principles to produce spiral ducting, welded ducting, and rectangular ducting. We also analyze the lifespan and performance of ducting for diverse environments, such as factory dust removal, equipment exhaust treatment, indoor and outdoor fresh air exhaust, basement fire smoke exhaust, and subway station fresh air exchange, providing clients with comprehensive, customized solutions. We also manufacture the ductwork for Wuxi Metro Lines 1-4, a textbook example of a national metro station, and for Nantong Line 1. We also employ ten experienced engineering and installation teams to assist clients with their installation projects.