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May 23, 2020018332Once the metal solidified the cope box is removed, the solidified casting is removed along with the lump of mould sand and passed on to the knockoff operation, where the adjoining mould sand is knocked down. This sand is reusable, so send for recycling. The solidified casting contains solidified metal at the sprue, runner, gates, flow off etc..
Our products sell well all over the world, and have advanced technology in the field of crushing sand grinding powder.