Kunshan Xinyoude Ventilation Equipment Co., LTD is located in economic prosperity, for many years the top 10 counties of kunshan city, is a professional processing custom installation as one of the ventilation pipe manufacturers, professional production of spiral duct, not only total duct flange, welded pipe, stainless steel pipe, also not only wholesale, processing all kinds of pipe fittings (elbow, air valve, flange, reducer, tee, inscribed, etc.), but also undertake design and installation of ventilation pipeline engineering, cooling, fire smoke exhaust engineering, hvac engineering, waste gas treatment engineering (such as factory ventilation environmental protection, environmental protection basement ...