Product name: T38 Symmetric Casing Drilling Bit For Tunneling N80 with raw materials Product category: Symmetric casing drilling system Matched connection: T38 Matched casing pipe OD: 114mm Overburden Casing ... Lire la suite
Product name: 139mm symmetric casing drilling bit with T45 thread connection for tunneling Product category: Symmetric casing drilling system Matched connection: T45 Matched casing pipe OD: 139mm MING Ring Bit ... Lire la suite
Product name: 1250mm Mring Overburden Symmetric Casing Drilling System With Ring Bit For Mining Product category: Overburden casing drilling system Permanent casing drilling ring bit advantage: Permanent ring ... Lire la suite
Product name: OD133mm MRING Overburden Symmetric Casing Drill bit With Ring Bit For Soft Rock formation Product category: Overburden casing drilling system The system consists of a driver bit, a ring, and ... Lire la suite
Product name: 133mm Permanent casing drilling ring bit for mining Product category: Overburden casing drilling system Matched hammer: Hammer DHD340 Matched casing pipe OD: 133mm Permanent casing drilling ring ... Lire la suite