Segala macam jenis antena, segala macam tipe antena, antena ìoutdoor/luar, antena indoor/dalam,antena parabola,radar,pesawat ìpenerima radio, televisi, tape recorder, video, mesin bicara, ìgramaphone, rewinder, amplifier, loud speaker, microphone,mega- ìphone, headphone, wireless, VCD, optik, kaca mata, lensa-lensa, ìmikroskop, teropong, teleskop, pesawat komunikasi, telephone, ìairphone, walky talky, handy talky, pesawat telex, pita - pita ìmagnetik, pita cassette, pita video disk recorder, laser disk, ìpiringan hitam,compact disk (audio,video),booster,accu,baterai, ìbel listrik, kabel telepon, transformator, travo, ballast, step ìup, step down,mesin faksimile,komputer,mesin hitung,kalkulator, ìkas register, printer, pesawat-pesawat ukur, speedometer,ampere ìmeter, meteran listrik,volta meter,modem-modem,monitor (program ìkomputer), CPU, stop kontak, sakelar, switch - switch, fiting- ìfiting, kombinasi fiting, stecter, sonar,seterika listrik,mesin ìfotocopy, disket, pesawat - pesawat pemadam api, alat solder ìlistrik