Quanzhou Shuangyang Diamond Tool Co., is one of the largest and professional diamond tool companies in china. It was founded in 1994 and employs more than 500 people including 50 technologists. Under the strict complete managing systems, Quanzhou Shuangyang Diamond Tool Co., which got the ISO 9001 certificate in 1998 and MPA certificate in 2001 supplys its high quality products to all over the world.