Ridge Shaped PDC Cutter Henan Innovation International Co., Ltd. Base Info Type:Impact DrillUsage:Well DrillingManufacturing Arts:DrillingTrademark:HNITransport Package:CartonSpecification:ISOOrigin:ZhengzhouHS Code:8207191000 Description Pre:High Quality Custom Wholesale High Quality Abrasive Tools Next:Electroplated Diamond Grinding Wheel