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Can Dunhuang guzheng be verified only once?
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Judging from the video of the inquiry, the bar code of Dunhuang Guzheng can only be inquired once, which is to prevent counterfeit merchants from buying only one real Dunhuang Guzheng and constantly using the bar code. If you have inquired once, the second inquiry will prompt "This barcode has been inquired, please do not inquire again". The bar code of Dunhuang Guzheng is hung at the sound hole in front of the back, with the information and code of the Zheng on it. You can check the authenticity in the following ways:

1. There is a manufacturer's logo near Zheng's head in front. Obviously, the fake Dunhuang looks a little dim.

2. The real Dunhuang Guzheng has a laser anti-counterfeiting label on the box cover of the Zheng, which is specially customized from Hong Kong. In order to prevent counterfeiting, the laser anti-counterfeiting label mold has been destroyed.

3. The real Dunhuang Guzheng has a quality inspection strip on the back of the Zheng near the tail of the Zheng, which is signed by the quality inspector. Fakes are basically stamped, even if there is a label, it is wrong.

4. The real Dunhuang Guzheng has information and bar code on the sound hole in front of its back. We can call the manufacturer. If it is true, we will tell you the model, name and corresponding dealer of this Zheng. Barcodes can only be queried once. In order to prevent counterfeit merchants from buying only a real Dunhuang ancient town, barcodes are constantly used.