DURA CO., LTD. is a leading manufactuer devote to develop zirconia, alumina, silicon oxide and composite materials such as zirconium silicate, ZTA, ATZ powder and products. The core products are yttria stabilized zirconium oxide bead, ceria stabilized zirconium oxide beads,Alumina Toughened Zirconia (ATZ)beads, zirconium silicate beads, Zirconia Toughened Alumina (ZTA) bead and microcristal alumina ball, which are high-grade ceramic grinding media.