Guizhou Changzheng Electric Power Equipment Co., Ltd. Guizhou Changzheng Electric Power Equipment Co., Ltd. Guizhou Changzheng Electric Co., Ltd. (the "Long Electric", stock code 600112) and wholly-owned subsidiary, with independent legal qualification, formerly known as Long Electric Plant, is specialized in the transformer on-load tap-tap-excitation and no R & D, manufacturing, sales and service of high-tech enterprises.

tap areas in the company from the early 1970s began to self-load tap-R & D, from abroad in 1984, M, V, T, MS-type full-load tap-manufacturing technology. Company through the introduction, digestion, absorption and innovation, launched the VM, VMM, MG, MD, MT, MB, KY4 series OLTC.

company's products won several national and provincial scientific and technological progress awards, new product award and Technology Achievement Award, and assessment excellent product for the state, national and provincial famous brand products are widely used in electric power, petroleum, chemical, metallurgy, railway, light industry and real estate industries, selling domestic and foreign, have been exported to Japan, Taiwan, Malaysia, India, Australia , Vietnam, Singapore, Turkey, Russia and other 30 countries and regions. With excellent quality and high-quality services to obtain new and old customers alike.

companies continue to adhere to rigorous scientific and technological innovation, improve product quality, pursuit of excellence, and efforts to the "Long March "brand into a world-class brand.