... Virgin Material in Fine Grain Size Tungsten Carbide for Wrist Watch Zhuzhou UKO cemented carbide co., ltd. Is contribute to ... etc, we own advanced level equipments, such as deoxidization furnace controlled by computer, high temperature Molybdenum carbide furnace, automatic-press ... .5Qualified for making dies with low impact such as punching watch parts, battery shells, small screw caps etc.YG20C 13 ...