Factory Supply Tungsten Carbide Anchor Bolt Bit for Coal Mine Sanmeul Drilling Tools Co., Ltd Base Info Model NO.：Anchor Bolt BitType：Non-Core DrillUsage：Well DrillingCertification：APITransport Package：Plastic Box , Carton BoxSpecification：CastingOrigin：China Description Pre：Diamond Saw Blade for Cutting Wall and Bridge Engineering Next：Bq Nq Hq Pq Diamond Core Bit
