| 摘要 |
The artificial building stones are prepared by cutting quarried basalt stones to a suitable size, heating them at 1500-2000≦̸C in a heating furnace to melt their surfaces, cooling, spreading epoxy resin on the surfaces of the stones for permeation, spraying them with a mixt. of pigment and silica or lead glass, and melting the surfaces of the stones again by heating to give glossy surfaces.
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