jewelry rouge cloths- wholesale What are the famous jewelry quality inspection agencies in China

jewelry rouge cloths- wholesale I heard that there are 4 major inspection units, I don't know which one is

1 thought on “jewelry rouge cloths- wholesale What are the famous jewelry quality inspection agencies in China”

  1. vintage looking jewelry wholesale I did not hear that there were four major quality inspection units. The following seven were more authoritative:

    1. Jewelry Inspection Center (GDTC)

    3. n
    5. China Treasure Jade Association (GAC)

    6. Big Gem Inspection Center (GIC)

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