What is industrial sapphire
Industrial sappers generally can not be achieved as a decorative grade gem, take industrial diamonds For example, a good point in the mechanical watch in the gear shaft are diamonds, but this diamond can only be used for tools, and can not be used for decoration, Another example is the glass knife, the diamond is diamond, the reason is the same, whether artificial or natural, the level of less than the decoration, are used as industrial use. Column navigation
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