DongYang Hstube Co.,Ltd was established in 1996 .Until now,Website:http://www.ductsworld.com,our company has developed into a company which is professional in making ventilatory hoses,canwas hoses,canwas hoses,PVC spring hoses and stainless steel hoses.These products are applied ti some areas,like exhaust fan in workshop,basement and auto&home appliance.Our products enjoy a high reputation all over the world.Except the ducts we have owned,we can also offer custom-made products according to different requests.Currently,over 20 different kinds of products are under production.With the concept...