Alaabtu waxay ka samaysan tahay xabagta silikoon, resin-ka-hortagga miridhku ka-hortagga biyaha, midabka, buuxinta iyo waxyaallaha kala duwan, biyaha deionized iyo agabka kale ee la sifeeyay ee hal qayb ka kooban si degdeg ah. Sifooyinka badeecada 1, biyaha sida dhexdhexaad ah oo kala firdhisan, aan guban, wasakh-la'aan; 2, caafimaadka iyo deegaanka...
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