High-Quality Grain Oriented Silicon Steel Sheets by Baosteel. Premium Baosteel Material: Raw materials sourced from Baosteel and WISCO for superior magnetic properties. Low Core Loss Efficiency: High permeability and low iron loss reduce Joule loss and improve energy efficiency. Wide Grade Selection: Extensive range including 23Q, 27Q, 30G, B20P, and B20RK series for diverse needs. Customization Options: Supports customization from samples, designs, and flexible minor adjustments. Strict Quality Control: 100% inspection with ISO9001:2015 standards and pre-shipment engineering checks. Eco-Compliant Coating: Insulation coating resists heating and corrosion, complying with EU RoHS and REACH. Advanced Processing: Excellent dimension tolerance suitable for punching and cutting with high lamination factor. Proven Manufacturer: Over 30 years experience with annual capacity of 100,000 tons of transformer cores.