Guangzhou Guanggao High Voltage Electric Apparatus Co., Ltd is a leading manufacturer in China for distribution transformer, power transformer, switchgear, transformer spare parts, and cable. It was established in 1958 and has got American UL certificate for over 600 Volts Pad-Mounted type and Pole-mounted type transformer，KEMA certificate for 110KV，63MVA power transformer and Italy CESI certificate for 220KV, 180MVA power transformer.