Grandpa’s heirloom looks like a piece of copper, Xiao Yan comes to appraise the treasure 

Who can tell that it is a gold brick without burning it? Grandpa’s heirloom looks like a piece of copper, Xiao Yan comes to appraise the treasure
Hello everyone, I'm Xiao Yan
Interested in collecting, there are heirlooms at home, I am curious about the true and false heirlooms left by the ancestors
Xiao Yan has been focusing on silverware for 20 years, sharing his knowledge of jewellery and play with you every day
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