How to choose tungsten rings Tungsten carbide has been made into jewelry are become so popular among young people, tungsten carbide jewelry with its unique metal element, can help both shiny and scratch resistant, it will last your jewelry shine forever. Unfortunately, not everyone can wear tungsten carbide jewelry. The metal contains cobalt so those who have an allergic reaction once it comes into contact with the body while to some others, it will help keep people's healthy. So, even you like the tungsten carbide so much, you should... read full review »