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40cm rock drill rod

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40cm 60cm het Gat van Rod For Jack Hammer Drilling van de Rotsboor en Gebroken

40cm 60cm Rock Drill Rod For Jack Hammer Drilling Hole And Broken Integral Drill Steels usually have forged collar, and are fixed length with a shank at one end and a bit at the other. This provides a hexagonal chuck section to provide leverage for the rotation chuck bushing. They are able to drill ...

7 11 12 de Verminderde Boor Rod For Mining High Efficient van de Graadrots Hulpmiddelen

High Efficient 7 11 12 Degree Rock Tools Tapered Drill Rod For Mining Our raw material is from 320*480 large-section continuous casting billet, then rolling into 150*150 square billet by drilling holes and inserting seamless pipe, and made of 55SiMnMo. The whole production involves multiple ...