... trader, exportor of cemented carbide products, such as cemented carbide drill bit, brazed tips,wear parts, rods and strips, non- ... years.About our products:Categories of our products:cemented carbide drill bit,cemented carbide brazed tipscemented carbide mining bitscemented carbide ... to ur drawingsType of cemented carbide drill bits: 1.type DYA 2. type DYB 3.type DYC 4.type DYD 5.drills for glass ...