90W Ø7.15x54.6mm tungsten dart billet price is 3.10USD/PC on Aug.31, 2018. Billet is the raw material of barrel which forms the main part of dart. Chinatungsten Online has 150 set molds in stock which for tungsten billets, so we can offer various sizes and requirements of tungsten billet, including W-Ni-Fe billet, W-Ni-Cu billet, W-Ni-Cu-Fe, etc. Also we own mature technique of surface grinding and centre-less processing.