... Heat treatmentautomoble, motorcycle accessories high-frequency hardening heat treatment. For example: crank shaft, ram, piston pin, camshaft, vavle ... hardening machine,heat treatment maching.all kinds of wood working tools,for example:the axe and planer’s heat ... parts, fasteners through thermal forming.hardware tools diathermy,for example : pliers and spanners heating-diathermy-forming.prospecting ...