I make a model with wax in a lost wax manufacturing method (casting) beginning. I bury it in liquid rubber and tear moulage, the rubber type which hardened in two and take out a model and pour the wax which I dissolved in the place that was able to put rubber types together and take out the wax which I harden, and was reproduced. When bury the wax in gypsum, and bake it, wax melts, and appear; and hollow ができるます. When I pour the noble metal which I dissolved into the cavity that I had and break gypsum, it is possible for the same thing.
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