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| Plasticizer
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Compound which increases flexibility and toughness when added to another compound. |
| Plastics
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Synthetic compounds made from petroleum products. Plastics can be formed into various shapes and are widely used in many types of manufacturing. |
| Plat
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A map or chart of an area showing boundaries of lots and other parcels of property. |
| Plat book
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Public record of maps showing the division of streets, blocks and lots and providing the measurements of the individual parcels. |
| Plat map
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Map showing land, with township, streets, improvement, lot lines, etc., within a specific area. |
| Plate
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(1) Smooth, flat, thin piece of metal or other material and used on a wall or door as a protective cover. (2) Horizontal framing piece that forms the top or bottom of a framed wall with studs being fastened to the bottom plate, which is already attached to the subfloor) and rafters and joists being fastened to the top plate. (3) Covering one material with a thin coating of another, which bonds to it. |
| Plate cut
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The cut in the rafter that rests upon the plate. It is also called the seat cut or birdmounth. |
| Plate girder
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Structural piece consisting of a build up of steel plates and angle iron which are attached together, forming a strong, lightweight section. |
| Plate glass
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Large smooth sheets of ground and polished glass, 1/16 inch thick or more, which are used for large expanses of glass, where strength and thickness is needed. |
| Plate joiner
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The plate joiner, also known as a biscuit joiner, is used specifically to strengthen wood joints in applications such as furniture making. The joiner cuts grooves of varying depths into the adjoining sides of two workpieces. Plates, or biscuits, are then glued into these grooves to reinforce the newly formed joint. |
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