... specialized manufacturer, trader, exportor of cemented carbide products, such as cemented carbide drill bit, brazed tips,wear parts, rods ... years. About our tungsten carbide strips for sand making machine:Usage: used for sand making machine crush hard granite, marble , grave, ect.Size ... ’ drawings Grades of our materials: Different grades are available, such as K10, K20, YG8, YG6, P10, P20, YT15 ect. ...