Helmet Shaped PDC Cutter Yuyao Mingbang Spray Packing Co., Ltd. Base Info Type：Impact DrillUsage：Well DrillingManufacturing Arts：DrillingTrademark：HNITransport Package：CartonSpecification：ISOOrigin：ZhengzhouHS Code：8207191000 Description Pre：PCD/PCBN Diamond Cutter Tools Next：PDC Bit Nozzles
