Hunan Zaiyi Environmental Technology CO., Ltd is a supplier of service and products dedicated to and specialized in the designing, manufacturing and installing environmentally friendly ventilation systems. It‘s products can be widely used in areas such as ambient purification, ventilation, centralized air-conditioning and smoke extracting. As executing member of the Environmental Protection and Governance of Hunan Province, it is officially qualified with license and certification of installing for mechanical and electric equipment. To supply under the brand name of “ZaiYi”, the company has set up professional manufacturing facility for its products in Changsha, the capital of Hunan. The company is equipped with SPIRO for its spiral tubes, together with other first-class machineries for stainless U-shape tube, digital plasma cutting, laser cutting, bending and final assembling. Combining with our strength in designing and installation, we can provide customized solution with spiral and rectangular ventilation tubes of high quality and with short leading time. We are committed to provide outstanding technology, products and service to our customers: “Highest quality is life of Zaiyi, Best service is the soul of Zaiyi”. We are continuously reinforce our competitiveness in pursuit to be the best ventilation supplier in the central part of China.