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I-insulated flexible Aluminium air duct yakhiwe ishubhu elingaphakathi, insulation kanye nejakhethi. 1. Ishubhu elingaphakathi: lenziwe ngebhande elilodwa le-foil noma amabili, elimele ngokuzungeza ocingweni oluphezulu lwensimbi olunwebekayo; I-foil ingaba i-aluminium foil ene-laminated, ifilimu ye-PET ehlanganisiwe noma ifilimu ye-PET. Okuthi...Funda kabanzi»