Zhejiang ERG Technology Joint Stock Co.,Ltd established in march 1994,main products including:transformer oil pump ,transformer oil indicator,transformer cooling fans ,CT terminal boards,BD series butterfly valves ,transformer terminal box ,transformer epoxy resin insulators ,transformer oil air cooler ,air to air cooler ,winder power generator cooler . 58500㎡ no-dust work shop 300 staff ,For lean production aim, our routine management strictly follows the 5S and 7S standards, and has gotten a series of several famous international and domestic certificates, such as ISO9001, ISO14001, EC, CE, EUP, IRIS, CRCC, manufacture license of pressure vessels(china), certificate of confirmity for measurement management systems(china), and certificate of national environmental management systems(china) etc. Our products have been enrolled on P/O list of many famous companies such as ABB, GE, SIEMENS, ARISTON, HYOSUNG, TOSHIBA, SINOPEC, CHIINA GUODIAN GROUP, XEMC, QINSHAN NUCLEAR POWER PLANT, TBEA, CHINA XIDIAN, SANY HEAVY INDUSTRY, CSR, CNR etc, and getting many favourable comments.