GBS’s heat treatment furnaces which a natural complement to cold forming are TUV approved. They fulfill all requirements set by international standards for austenitic stainless, carbon steel, types of dublex and super dublex stainless, nickel alloys and low-alloy carbon steel. All the furnaces of KBS are controlled according to ASTM A 991 – SAE AMS 2750-ISO 17763-EN 746 and are calibrated by international accrediting agencies.