Diamond Core Drill Bit for Geotechical Exploration Bq Nq Hq Pq Jinshi Drilltech Co.,Ltd. Base Info Model NO.:BQ NQ HQ PQType:Core DrillUsage:ExplorationCertification:Is09001:2018Trademark:JINSHI(JS)Transport Package:Caton BoxSpecification:345*260*130MMOrigin:ChinaHS Code:8207191000 Description Pre:Jewelry Saw Blades Glardon Vallorbe Sawblades Jewellers Metal Bow Saw Cutter Blades Next:Wireline Impregnated Diamond Core Drill Bit with 10mm / 12mm / 14mm Crown Height