petek, 4. februar 2011

bow and arrow: Design Forms for Concrete Wall

Design Forms for Concrete Wall

List Price: $3.00



List Price: $3.00
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This course addresses the principles of designing wooden forms for a concrete wall. One of a carpenter's most important concerns is to ensure that all wooden forms for concrete walls are designed for strength and durability. In this subcourse you will be taught how to select the proper materials and how to space these materials to gain the desired strength. As a carpenter, you must be able to construct

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