Chinatungsten can provide tungsten dart billet by various content, usually from 70% W to 90%W, the more content of tungsten, the higher density is. The normal tungsten content is 80% W because it is much cheaper than 90% W, but we can provide 90% W or more than 90% W tungsten dart billet according to your requirements. For more details, you can visit: http://news.chinatungsten.com/cn/, which is a professional website offering prices of tungsten products, latest tungsten news, information, and tungsten patent technology, etc. You can find what you want to know about tungsten from this website as there is a professional team manages the website and updates the latest tungsten products prices and news timely.