Our E I core is a combination of CRGO and CRNGO, which is fabricated using quality material of construction. We offer customization facility to our clients and manufacture the core in different dimensions. The grades used for manufacturing are CRGO - M3, M4, M5 and M6 and CRNGO - M43, M45 This type of transformer core is used in following: * Control transformer * Instrument transformers * Iron core chokes * Ballast * Electromagnetic application