A bending machine is provided wherein components of the existing abutment system, namely a drive part or a carriage, which can be directly or indirectly detachably coupled to the lower tool, are used instead of an additionally integrated device for displacing lower tools transversely in relation to their length. A suspending bracket is formed on the inner surface of the pillar trim in the vicinity of a screw housing. The second resistor is connected in parallel between the base and an emitter of the transistor. Internal activation of carbon catalyst is accomplished by recycling of hydrogen-depleted gas containing unsaturated and aromatic hydrocarbons back to the reactor. The metallization layer preferably comprises a conductive refractory material such as platinum to withstand high temperature environments.