MPR Refractories Ltd. Supplies Magnesite Bricks for Hot Metal Mixer. MPR Refractories Ltd. Is an ISO 9001:2008 registered organization. MPR Refractories Ltd. Manufactures Packing & Sealing Compounds, Slide Gate Plates, Ladle Nozzles, Porous Plugs, Tundish Nozzles, Well Block for Porous Plugs, 90 K Mortar, 95 H Castable, Tundish Boards, Collector Nozzles, etc. The Magnesite Bricks of model number MPR-MGD 92 finds applications in Hot Metal Mixer, and Safety lining of EAF.