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Colored concrete roofing tile competes with ordinary types
Low production cost opens wide market for roofing unit; dimensions and weight of tile; daily production of machine.
Colored concrete roofing tile competes with ordinary types
Low production cost opens wide market for roofing unit; dimensions and weight of tile; daily production of machine.
Engineering Index Backfile | 1923
|Modern concrete roofing tile plant
Engineering Index Backfile | 1936
Hand-operated concrete roofing tile machines
Engineering Index Backfile | 1935
|Engineering Index Backfile | 1896
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