With more than 70 years in the refractory industry, Macedonia-based ETS Schaefer designs and supplies ceramic-fiber products and heat-containment systems for demanding industrial furnaces. Its distinctive work includes prefabricated monolithic linings built for precise fits, along with engineering, installation, field repair and the RENEW™ program for relining existing heat-containment equipment. The company also developed its exclusive Monster Block™ system and serves customers worldwide from its Ohio operation.