I-coils / iishiti ezilungiselelwe zentsimbi zibizwa ngokuba yimibala yentsimbi / amashiti e-coated, ngokubanzi zenziwa ngokugaya (ukurola) umaleko kwisiseko okanye kwifilimu e-organic kunye nokubhaka kwii-coils / amashiti okugqibela. Imigca yangaphantsi yeleyili yensimbi (i-PPGI) okanye i-coils yensimbi ye-galvalume (PPGL), i-coil aluminium (PPAL).

Iileyili zentsimbi ezilungiselelwe / amashiti zizinto ezintsha zokwakha eziphuhla ngokukhawuleza kwiminyaka yakutshanje kwihlabathi liphela. Ihamba ngokuxhamla kwamakhemikhali, ukuloba kokuqala, ukugoba okokugqibela kunye nezinye iinkqubo kumgca wokuvelisa oqhubekayo. Ukudibanisa kuyafana, kuzinzile kwaye kufanelekile, kungcono kunokudityaniswa kwamachaphaza okanye ukupeyinta ibrashi yamacandelo esinyithi.

Iileyili zensimbi ezigqityiweyo / amashiti anomhombiso ogqwesileyo, ukubumba, kunye neepropathi ezilungileyo zokuxhathisa ukuvela. Ukuncamathela kokudibanisa kulungile kwaye akunakutshintshwa ixesha elide. Kuba intsimbi elungiselelwe ngaphambili inokuthi ithathe indawo yeenkuni, yinto efanelekileyo yokwakha, ngokonga amandla, ukuthintela ungcoliseko kunye nefuthe elihle loqoqosho.