Ceramic Jewelry Manufacturer tell you Why choose
2019-3-23 · Durability. Zirconia ceramic—rated at a hardness of 8.9 on the Mohs scale (similar to sapphire crystal)—is highly scratch resistant. The zirconia ceramic used by us has a 99% density of the material. This means the finished product has no porosity to the naked eye and very little under a …
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