Best Diamond Products Co,Ltd,Henan Province,P.R.China lies in Changge City,Henan Province,P.R.China,covers 30000square meters,specializes in manufacturing synthetic diamond,diamond products,building machinery,such as various synthetic diamond,CBN,diamond saws,diamond bits,diamond abrasives,diamond compacts,diamond drilling machines,road surface cutters,steel bar benders and cutters etc.These products have high quality and cheap price,are sold smoothly all over the country,and distantly to south korea,southeast Asia.The company passed smoothly the ISO9001:2000 quality management system certification in 2003.