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| Clamp, corner
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Clamp that is specifically designed to hold members that are joined at an angle, in place. |
| Clamping time
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Quantity of time required to hold two members together with clamping pressure applied to the joint between them. This duration is determined by the curing time of the adhesives used in bonding. |
| Clamping tool
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Clamping tools are designed for any number of lightweight and industrial uses where a sure grip is required. Clamping tools hold objects steady when being tooled or sanded. They allow pieces that have been joined with adhesives to adhere securely and they can act as quick mounting devices. |
| Clamps
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| Clamshell
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Soil excavation machinery with a bucket attachment that can be closed to hold in a load of soil and then open to dump it. |
| Clapboard
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Siding, consisting of long, beveled, overlapping horizontal boards, usually cedar, which are usually tapered in thickness, with the thicker lower edge of one board overlapping the thinner top edge of the board below. |
| Clasp nail
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U-shaped, heavy-duty staple. |
| Class "a" fire resistance
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The highest fire-resistance rating for roofing per astm e-108. Indicates that roofing is able to withstand severe exposure to fire originating from sources outside the building. |
| Class "b" fire resistance
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Fire-resistance rating that indicates roofing material is able to withstand moderate exposure to fire originating from sources outside the building. |
| Class "c" fire resistance
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Fire-resistance rating that indicates roofing material is able to withstand light exposure to fire originating from sources outside the building. |
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