... 20*4825(A)B extension engine1431*19*33Main characteristics:Using the SIEMENS IGBT Module and the unique variable ... high-frequency hardening heat treatment, for example: vice, locking pliers, spanner.hydranlic components: for example:the plunger, rotor, reversing ... through thermal forming.hardware tools diathermy,for example : pliers and spanners heating-diathermy-forming.prospecting drill rod taper ...