concord wholesale jewelry supply store
1 thought on “concord wholesale jewelry supply store How is the ceramic coating made? Is it scratch -resistant?”
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concord wholesale jewelry supply store
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wholesale gold body jewelry The ceramic coating is to make the ceramic formula into a coating, and then apply it to the surface of some items, and then the high temperature sintering to form a protective layer. The degree of scratch resistance has a great relationship with the ceramic formula and the sintering temperature. of.