bits tricone for water well, bits tricone for water
brand new water well drilling bits tricone rock bit for drilling. US 810 ... material R780 Diameter OD 76mm 3m long water well drill pipe for connect Tricone bit DTH bits. US 72.00-100 ... 437/447 0.35-0.9 150-70 very Soft formation with low compressive strength and high drillability,such as clay,soft …
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