Ecoosi Industrial Co., Ltd. Is China' s leading manufacturer for all of your industrial flexible air duct hose needs. as a reliable manufacture of flexible ducting hose products since 2006, we specialize in long-life industrial duct hose, affordable for air ventilation, solid scrap, material handling, industrial ducting, high temperature ventilation, and abrasive transfer applications. Ecoosi have been working with the most famous brand in the world, such as VACUFLEX, SCHAUENBURG, MASTERFLEX, NORRES. Our flexible duct hose products have been used by domestic and foreign customers for very long time and have won unanimous praise from customers.