Canada kaiyuan is a branch company of China Xiamen kaiyuan diamond tools Ltd. It is located in the periphery of Fujian, China. Since our establishment in 1989, we have been co-operating with GE USA in researching and manufacturing a wide range of stone and concrete cutting tools. In 1990, we have established 2 research centers in Dalian and Quanzhou with GE USA. Right now We had our own research lab in Xiamen to develop the technic which can support our production. We already patented our own diamond ordinal array technic in China and also published it in U.S. In 2008, we started our new branch company in Canada vancouver, for expanding our business. Kaiyuan&＃039;s product range includes diamond blades ranging from 350mm to 2200mm and diamond bits for granite, marble, concrete, refractory and glass. Thin core drills for many kinds of stone and concrete(reinforced).