Mis va alyuminiy sim va kabelning asosiy materiali ekanligi barchamizga ma'lum, shuning uchun kim mis o'tkazgich kabeli va alyuminiy o'tkazgich kabelini qanday afzalliklarni taq...
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Kam tutunli galogensiz simi nima? Nomidan ko'rinib turibdiki: kam tutun, ya'ni yonish paytida zararli moddalar ishlab chiqarishni kamaytirish; Galogenlar inson tanasi uchun zaha...
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