sapphire glass Flat thickness 1.0/1.2/1.5/2.0/2.5/3.0mm diameter 24-40.5mm transparent crystal sapphire glass watch parts

sapphire glass Flat thickness 1.0/1.2/1.5/2.0/2.5/3.0mm diameter 24-40.5mm transparent crystal sapphire glass watch parts

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