Sizes of Ei Silicon Steel Bended Metal Sheet Panels. Customizable Core Gaps: Transformer lamination core gaps can be customized to meet specific design requirements. Wide Thickness Range: Available thickness from 0.23mm to 0.5mm, including CRGO and CRNGO options. Extensive Size Options: Standard EI sizes from EI-28 to EI-360 and 3PEI-17.5 to 3PEI-120. High Quality Material: Produced from famous steel factories using M3-M6 and 35W-50W series silicon steel. OEM/ODM Service: OEM business is appreciated and customization service is available for clients. Versatile Applications: Suitable for transformers, reactors, UPS, ballasts, and power stabilizers. Quality Assurance: Strict quality control with professional monitoring and trade assurance protection. Fast Delivery: Sample orders ship in 1-2 days; formal orders ship in 7-12 days.