The unit for processing industrial rubber and plastic waste consists of a gasproof chamber, in which upper rollers and lower rollers are located in rows. The nitrogen can be added by bubbling nitrogen gas through the molten silicon; the aluminum can be added as aluminum metal or as Al2O3. Data leakage is deemed to have been detected in the mobile computing device when an outgoing communication includes the trap data. The lapping monitor makes it possible to extremely stabilize the ELG sensor resistance measured values upon lapping as well as to provide a high accuracy MR height control.