Premium Silicon Steel Coils for Efficient Transformer Manufacturing. Premium CRGO Material: Raw materials sourced from Bao-steel and Wu-steel for superior magnetic properties. High Energy Efficiency: Low iron loss and high permeability reduce Joule loss and improve transformer efficiency. Extensive Grade Selection: Wide spectrum of grades including B30P120, 27QG120, and domain refined laser types. OEM/ODM Customization: Supports full customization, minor customization, and flexible options from samples or designs. ISO9001:2015 Certified: Strict quality control with 100% inspection and ISO9001:2015 standard compliance. Advanced Manufacturing: Equipped with advanced German slitting systems and Georg 800 cross-cutting machines. Large Production Capacity: Annual transformer core production capacity exceeds 100,000 tons. 30+ Years Experience: Pioneer in CRGO silicon steel products in China since 1988 with exclusive Bao-steel partnership.