YUHUAN YAGE BRASS MANUFACTURE CO.,LTD is a manufacturer specialized in integrating design, production and marketing of products of HVAC system, such as pipes, valves, and fittings, etc., with advanced equipment, and a set of complete testing methods. Asimilating the advantages of similar products all over the world, we also implement total quality management for our products and carry out ISO9001 standard strictly, to ensure that all of our products are made with high quality in each process.