Diamond testers are commonly used for quick screening at gold shops and jewelry stores. These devices can provide reliable results within their intended testing...
For many gold shops, jewelry repair is an important part of daily operations. Customers may bring in cracked rings, broken chains, damaged clasps, or loose smal...
In jewelry manufacturing, even a small welding spot can affect product quality. For rings, necklaces, earrings, and fine details, welding requires high precisio...
For FDI enterprises in electronics, components, plastics, cables, or industrial equipment manufacturing, controlling hazardous substances in accordance with RoH...