wholesale beading jewelry supplier After changing the gold necklace, there are many small black spots on the gold when it is melted when it is changed. Why does this phenomenon appear
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wholesale stone jewelry thailand Your previous necklace was also hand -made, it should be hollow. There is plaster in it. It is not surprising. If the empty core necklace is completed, there will be a possibility of gypsum residue if you do not use ultrasonic treatment. Golden grams may shrink the possibility of shrinking. Furthermore is dirt that is worn for a long time, survived on the surface and internal dirt. After melting, because of high temperature and borax, if the gypsum will be white and the dirt is black, it is recommended not to go again Machining gold jewelry, it is better to exchange at the gold shop, workmanship is much better than manual.
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wholesale jewelry blogs It is estimated that the dirt that was previously attached to the necklace, right?
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