Guizhou Changzheng Electric Co., Ltd ist 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 changer. The Company developed ZVMD, ZVMB, ZM and ZV series ect tap-changer which has propriertary intellectual property rights through digestion, absorption and innovation. Our products are widely used in electric power, petroleum, chemical industry, metallurgy, railway, light industry and exported to more than 30 countries and regions. The Company has completet quality management system and obtained the certificate of ISO9001: 2008, 、ISO14001: 2004 and GB/T28001-2001 （this standard covers the all technical contents of OHSAS 18001: 1999）Changzheng Electric has built as the biggest production base of tap-changer in China.
Wuhan Road Huichuan District 1
563000 Zunyi - China
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