
Dry Type Transformer Iron Core with Epoxy Resin for Black Color. Superior Performance Structure: Toroidal design offers better performance than EI cores for various applications. Wide Size Range: Inner diameter 5mm-1200mm, Outer diameter 6mm-1800mm available. Customizable Air Gap: Cores can be customized including air gap according to customer requirements. Extensive Application Scope: Used in potential, current, voltage transformers, and various audio equipment. Experienced Manufacturer: Nearly 20 years of experience in transformer cores area. Comprehensive Material Supply: Export CRGO/CRNGO raw materials, insulations, copper/aluminum foils, and wires. ISO9001 Certified: Manufacturing process certified under ISO9001-2000 and ISO9001 standards. Fast Lead Time: Peak and off-peak season lead time within 15 working days.