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The Peru Project – Low Cost Housing for the United Nations: Interlocking concrete blocks for mortarless block wall – Photographs of mold
3) Initial mold, when closed, providing the shape of the overlapping element of the blocks
The Peru Project – Low Cost Housing for the United Nations: Interlocking concrete blocks for mortarless block wall – Photographs of mold
3) Initial mold, when closed, providing the shape of the overlapping element of the blocks