... treatmentautomoble, motorcycle accessories high-frequency hardening heat treatment. For example: crank shaft, ram, piston pin, camshaft, ... fasteners through thermal forming.hardware tools diathermy,for example : pliers and spanners heating-diathermy-forming ... Braze weldingcarbide cutting tools welding. For example: turning, milling cutter, reamer.diamond cutter welding. For example: diamond saw blade, ...