STRUT STRUCTURE IN BLOCK WALL
PURPOSE:To construct a strut by use of blocks at a part of a block wall composed of blocks parallelly stacked. CONSTITUTION:A plurality of protrusions 7 and recessed grooves 8 are provided alternately at the external face of the rear side and a pierced hole 10 is provided at the bottom face 9 near t...
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Sprache: | eng |
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