Guizhou Changzheng Electric Co., Ltd. is a new and high-tech enterprise specially engaged in research, development, manufacture, sale and service of transformer on load tap changers and off-circuit tap-changers. Our company was the earliest manufacturing enterprise who began to manufacture the tap changer. We began to independently develop on load tap changer in the early 1970s, now we independent researched on load tap changer of ZVMD, ZVM, ZMD, ZM, ZV and etc. series reach to the international advanced level and won the national and provincial famous brand title. Our products are widely used in electric power, petroleum, chemical industry, metallurgy, railway, light industry, real estate and so on, we have the certificate of foreign trade operation, the products exported to more than 30 countries and regions, and received acclaim by old and new customers with the super quality and excellent service. New Changzheng industrial park with the investment of 350 million by our company has been put into service. Now it has built as the biggest production base of tap-changer in China . The company occupied more than 100，000㎡, has more than 500 employees and more than 500 units of processing and inspection special use equipments. We already passed the system auditing of ISO9001:2008、ISO14001:2004、OHSAS18001:2007. With the principle of “security sources in quality and confidence sources in service”, our company will continue to insist on the strict spirit of scientific innovation and improve the product quality constantly, pursue the excellent quality and try our best to create the “Changzheng” brand as the international first-class brand.
