borewell hammer bit ผลิตออนไลน์

Product name: 7 Degree diameter 40mm Tapered Rock button bit for taper drill rod Product category: DTH taper drill bit Matched connection: 7 degree taper Diameter: 40mm KINGDRILLING DTH taper drill bit ... อ่านเพิ่มเติม

Product name: 12 Degree diameter 32mm Tapered Rock button bit for rock drill Product category: DTH taper drill bit Matched connection: 12 degree taper Diameter: 32mm KINGDRILLING DTH taper drill bit description... อ่านเพิ่มเติม

Product name: T51 diameter 89mm retract thread button drill bit Product category: DTH thread button drill bit Matched connection: T51 Diameter: 89mm other diameter: 89mm, 102mm, 115mm, 127mm, 140mm,152mm Skirt ... อ่านเพิ่มเติม