Wiper-lever system, method for producing the same, wiper device and wiper system

The wiper linkage unit (2) has several wiper components (20,30,40) which are frictionally engaged together by means of magnetic pulse. The wiper components are made of light-metal material which is selected from group consisting of aluminum and/or a steel alloy material. Independent claims are included for the following: (1) method for manufacturing windshield wiper linkage unit; and (2) windshield wiper device or wiper system for motor vehicle.