260. Pick up incorrect statement about advantages of vacuum die casting
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261. Ornaments are cast by
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262. Ornamental objects, statues, toys etc. are cast by
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263. Steel and cast iron pipes are cast by
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264. Scabs or buckles are the casting defects
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265. In centrifugal casting, the impurities are
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266. The core in the centrifugal casting is made of
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