9 Electrical and electrotechnical components made of ceramic; coolers for electronic components; components for electric circuits; parts for scientific apparatus and instruments, included in this class; weighing, measuring, signaling and control devices for electrical and electronic devices and electrotechnical systems as well as for power electronics; sensors for pipes for temperature measurements and heating technology; magnetrons; carrier plates for electronic layer couplings [electronic components]; carriers for electronic resistors [electronic components].