The quality of pure gold and pure silver goods (gold, platinum and silver ornaments) refers to whether the gold content and silver content of the goods meet the national standards.
The quality of jewelry and jade articles (diamonds, colorful treasures, jade articles and pearls) refers to whether the goods are natural or not, and jewelry products are generally certified by the National Jewelry Inspection Bureau.
The quality of wooden strings refers to the authenticity of wooden strings and whether they are the same as labels.
The damage, deformation and discoloration of commodities belong to wear problems. In the process of wearing, customers intentionally or unintentionally scratch, squeeze or contact with chemicals, which will lead to damage, deformation and discoloration of goods. The problem of wearing is regardless of the length of time, which may be a day or a year. In the process of wearing, it is generally no problem to pay more attention. In case of wearing problems, you can take it to the store for free maintenance. If the special goods can't be repaired and reshaped, you can pay the processing fee for a new one. Some commodities (such as jade and wooden strings) cannot be exchanged for new ones or repaired. Pay more attention when you wear it.