HeiBei DongGuang County Circular Saw Made By Diamond Co.,Ltd established in 1987 in Hebei Province of North East Central County-ray novae Industrial Park, was the first professional research and the production of diamonds Jupian matrix manufacturers, and also the largest production base north body manufacturers.    Company covers 20,000 square metres, with a large number of professional and technical personnel, and large and the number of school graduates accounted for 25% of the total number of companies. Companies have advance···