Profile: Hanyan-Higgins Co., Inc. specializes in sales and services of refractory materials. Our services include hot guniting repairs, plastic gunning, firebrick installations, castable installations, precast refractory shapes, injectite pumpable insulation, water tank linings and boiler refractory services. We provide ceramic fiber blanket, papers, specialty coatings, heavy duty arches, heavy duty wedges and square edge tiles.