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  • Wax die casting in China originated in the Bronze Age, has a history of more than two thousand years.

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Gansu Hualing Casein Co.

  • This process has certain requirements for materials such as water glass, ion exchange resin and operation technology, which are the weakness of domestic products.

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  • However, silica sol prepared by this method usually has a particle size of about 10-20 nanometers, and the interface between particles is not clear, the morphology is non-spherical and cannot be controlled, and the interface between particles is not clear, so it is usually used in casting and other industries in large quantities, but not in many fields with higher requirements such as precision polishing and catalyst.




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