| 摘要 |
This is for forming three dimensional pattern on flat glass in mold frame made from asbestos powder. After laying the flat glass (4) on a mold frame of asbestos powder with a sculptured pattern, the chamber (1) is heated to 700-800 deg.C through ignition of gas tube (5) and then three-dimensional pattern is sculptured on the flat glass. The mold of asbestos powder is manufactured by mixing sand and clay and stone and lime powder below 10 wt.% without glass component.
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