… tiles, sanitary ware, etc.), and classification is not affected by the nature of the ceramics used in their … than in the case of pottery made from common clay; it differs from porcelain or china because it is not completely … and hard enough to resist scratching by a steel point, differs from porcelain because it is opaque and normally …
… kind designed essentially for decoration , e.g., in homes, offices, assembly rooms, places of religious worship, … other decorative articles or to add to their decorative effect, for example : (1) Busts, statuettes and other …
… the heat is obtained electrically (e.g., by the heating effect of a current in a conductor; from an electric arc). … between two metal plates connected to a source of AC. In effect the arrangement operates as a capacitor, and …
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