1. Jinlong Jewelry adopts a new self-dissolving welding technology, and the purity of the deposit reaches 99.99%. "Solder" is a mixture of chemical elements such as gold, copper, nickel and tin.

2. Jinlong Jewelry adopts a relatively novel gold autolysis technology in the processing process, which has the characteristics of preserving value. In the absence of solder, gold has high chemical stability and is not easy to change color after long-term wear.