Gerster Infra AG provides heat-treatment services and related process capabilities, including surface hardening (induction, flame, laser), furnace treatments (gas/vacuum hardening, precipitation hardening, carburising, nitriding), HARD-INOX® and brazing, plus finishing services such as straightening, blasting and crack testing. The company also offers support services, logistics and customs handling, and training/consulting for sectors including industry, automotive, medical devices and aerospace.