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2. Tempered glass - Wikipedia

   en.wikipedia.org/wiki/Tempered_glass

   Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempering puts the outer surfaces into compression and the interior into tension .

3. Cut glass - Wikipedia

   en.wikipedia.org/wiki/Cut_glass

   Bowl of a wine glass in typical cut glass style Cut glass chandelier in Edinburgh. Cut glass or cut-glass is a technique and a style of decorating glass. For some time the style has often been produced by other techniques such as the use of moulding, but the original technique of cutting glass on an abrasive wheel is still used in luxury products.

4. Glass cutter - Wikipedia

   en.wikipedia.org/wiki/Glass_cutter

   Glass cutter, showing hardened steel cutting wheel (far left), notches for snapping, and ball (on end of handle) for tapping. A glass cutter is a tool used to make a shallow score in one surface of a piece of glass (normally a flat one) that is to be broken in two pieces, for example to fit a window.

5. Cutting board - Wikipedia

   en.wikipedia.org/wiki/Cutting_board

   Kitchen cutting boards are often made of wood or plastic and come in various widths and sizes. There are also cutting boards made of glass, steel, or marble, which are easier to clean than wooden or plastic ones such as nylon or Corian, but tend to damage knives due to their hardness. Rough cutting edges—such as serrated knives—abrade and ...

6. Lead glass - Wikipedia

   en.wikipedia.org/wiki/Lead_glass

   Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]

7. Art glass - Wikipedia

   en.wikipedia.org/wiki/Art_glass

   Art glass is a subset of glass art, this latter covering the whole range of art made from glass. Art glass normally refers only to pieces made since the mid-19th century, and typically to those purely made as sculpture or decorative art , with no main utilitarian function, such as serving as a drinking vessel, though of course stained glass ...