The structural and industrial materials of California (1906)
Aubury, Lewis E., 1862- · Sacramento, W. W. Shannon, Superintendent state printing · leaf 244
(ja?) 238 STRUCTURAL AND INDUSTRIAL MATERIALS OF CALIFORNIA. at the end, the side, or the edge. By changing the die, hollow bricksmay be made on the stiff-mud machine. Sometimes two or more barsof clay are delivered from the machine at the same time, and thecapacity thus doubled. In one type of the…
Building stones · Portland cement · Clay · Mines and mineral resources
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