Taper Drill Rod For Rock Drilling - Buy T45 Drill Rod ...
Taper degree:4.46 6 7 11 12 Drilling rod length:0.4m-6m . The tapered drill rod is used for rock drilling, blasting holes and other drilling works in the quarries, coal mines, traffic and other constructions. Generally, the lightduty rock drill uses 7 taper or smaller taper angle, the heavyduty rock drill mainly uses 12 taper …
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