... quality diamond Keen Diamond produces kinds of diamond beads with cobalt bond system and top quality diamond ... work, as well as special diamond wire saw beads for concrete, reinforced concrete and steel cutting with ... diameter of 7.0mm,8.5mm, 9.0mm, 10.5mm, 11mm and 11.5mm, and working layer ... . Keen Diamond can also produce the wire saw beads according to customers' specific requirement if the quantity ...