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Thank you for visiting Grandindex!
High Quality, Low Cost, Guaranteed with excellent service and speedy shipment.
All kinds of optical instruments, measuring tools, also for these instruments'requires. To all people in the world, offer Refractometers, Microscopes, PH-meters, Gauge, Loupes,all kinds of instruments for gemstones' quick testing, lights for lab using and all kinds of tools for home using.
we prefer to receive orders via E-mails
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