Inkqubo yemveliso ye-porcelain insulator ibandakanya imisebenzi yokuvelisa ilandelayo: Ukugaya → Ukwenza udongwe → Ukugalela → Ukubumba → Ukomisa → Ukomisa → Ukukhazimula → Ukutshisa → Uvavanyo → Imveliso yokugqibela Ukwenza udaka: ukusila nokucoca imathiriyeli ekrwada efana nelitye lodongwe, feldspar, udongwe kunye nealuminium. ...
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