Isetshenziselwa isakhiwo sokusabalalisa igatsha lekhebula elivalekile, ukuxhumeka kwekhebula elingaphansi kwamandla kagesi angaphansi kwe-insulated, igatsha lekhebula lokungena lamandla aphansi we-insulated, uhlelo lokusabalalisa ukukhanya komgwaqo, njll.Umugqa oyinhloko: ithusi elifakwe ngaphakathi noma i-aluminiumUmugqa wegatsha: ithusi elivinjiwe noma i-aluminium
UHLOBO