Cheap Price Tricone Bit in China Beijing Superior Drilling Equipment Co., Ltd. Base Info Model NO.:IADC537Customized:CustomizedStandard:APILength:Taper-lengthType:Center Drill BitMaterial:Tungsten CarbideUsage:Well DrillingTrademark:superiorTransport Package:Woodern BoxOrigin:Hebei Description Pre:Top Sales Water Well Drilling Tricone Bits Next:Steel Tooth Tricone Bit for Soft Formations Drilling