SIGNET ACQUIRES FACTORY: Signet Jewelers Ltd. has acquired a diamond polishing factory in Gaborone, Botswana from H&A Cutting Works (Botswana) (Proprietary) Ltd., a subsidiary of Exelco International ...
As shown in the above figure, energy beam-based direct and assisted polishing technologies utilize lasers, ion beams, or plasma to ablate, impact, or modify the diamond surface, thereby reducing ...
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