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The future of investment casting in China

China's investment casting industry was established in the 1950s.There are two technological enterprises for historical reasons: one is silica sol or ethyl silicate shell process, the other is sodium silicate shell process.The former plant's investment casting has reached the international level, the latter plant's casting has not reached the international level, but the latter type of factory accounts for the majority of the total number of manufacturers.The first category is domina...