Dab tsi yog cov ntaub ntawv tseem ceeb siv rau hluav taws xob insulators?
Cov khoom siv ntau tshaj plaws uas siv los ua hluav taws xob hluav taws xob cov kab hluav taws xob yog cov iav toughen, high-alumina porcelain, thiab cov polymers sib xyaw.
--Cov ntaub ntawv raw ntawm porcelain insulator
-- Kev tsim cov iav insulator
-- Silicone roj hmab insulator
