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Gram Calibration Weight 1g 2g 5g 10g 20g 50g 100g Scale Calibration Weight Set for Digital Scale Balance and 1 Piece Calibration Weight Tweezer: Amazon.com: Industrial & Scientific
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1000g Calibration Weight set 10/20/50/100/200/500g for Digital Scale Balance Measurement Jewelry Medicine scales 1KG M2 Standard
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