... an OEM factory. We manufacture and export various of Cobalt tungsten, ceramic Watches, rings, bracelets, which can be inlaid with gold, silver ... , QG for many years. we are also selling many of our rings to many trading companies here in Ali. So far, we ... in mainland China. We have various kinds of rings, bracelets, pendants and necklace. etc. made of tungsten carbide and ceramic, and also we ...