tungsten beads, tungsten slotted beads with smaller slotted hole normal hole for barble, smaller slotted hole for barbless. size: 1.5mm, ... 65mm, 5.5mmslotted hole beads, the hole is normal, or smaller than normal. tungsten beads, tungsten slotted beads, tungsten cones, ... supply tungsten production (slotted tungsten beads, regular tungsten beads, slotted faced tungsten beads, slot tungsten cone head, ...