A liquid or partially liquid phase process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene uses a zeolitic catalyst system preferably based on zeolite beta and on pentasil-type zeolite. Then, the composite body is cut to form a bar type body having a predetermined length from the end of the coating metal. A slide is linearly moveable relative to the track. The interface may be a logical interface internal to the network node.