Iron Steel Melting Magnesia Crucible for Medium Frequency Induction Furnace. Durable Material: Constructed from Clay, MGO, and High Alumina for long-lasting performance. Flexible Customization: Supports full customization, minor customization, and flexible options. Manufacturer Direct: Direct supply from a manufacturer with 14 years of export experience. Quality Assurance: Strict random inspection for visual and functional quality control.