Mũi khoan kim cương cao ngâm tẩm Kim cương lõi khoan2020-05-19 12:00:18 |
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Mũi khoan lõi kim cương tẩm kim cương BQ, NQ, HQ, PQ để thăm dò khoáng sản2020-05-19 12:00:20 |
Surface Set Diamond Core Drilling Bit for Broken / Abrasive Formation Rock2020-05-19 12:00:15 |
Impregnated Diamond Core Drill Bit For Rock Core Drilling BQ NQ HQ PQ size2020-05-19 12:00:14 |
Impregnate Diamond Core Drill Bits For Rock A B N H P Wireline Core Bit Size2020-05-19 12:00:06 |
48mm / 75mm Diamond Core Drill Bit for Portable Underground Drilling Rig2020-05-19 12:00:11 |