Izinto zokuvikela ipulasitiki nezingxenye ezihambisayo zetheminali zihlobene ngokuqondile nekhwalithi yetheminali, futhi zinquma ukusebenza kwe-insulation kanye nokuhamba kwetheminali ngokulandelanayo.Ukwehluleka kwanoma iyiphi itheminali eyodwa kuzoholela ekwehlulekeni...
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