Nanjing Rainbow Electric Co., Ltd.(NJREC) is a leading Chinese manufacturer and exporter of electrical insulators and transformer components. We offer the one-stop solutions for oil and dry type transformer, pad mounted transformer, isolating switch and wall applications. NJREC also undertakes the production for the transmission line and power substations, our main products include glass insulators, porcelain insulators, high voltage and low voltage transformer bushing, tap changer as well as other insulation materials.