With over 150 years of industry leadership and global recognition, HarbisonWalker International (HWI) is the largest supplier of refractory products and services in North America. Headquartered in Pittsburgh, Pa, the company’s international network spans North America, Europe, and Asia. Serving virtually every major industry that requires refractory solutions to enhance production and protect assets, HWI is consistently recognized for its talented experts, industry firsts, and intensely driven excellence. (less)