hard rock water drilling bits, hard rock water drilling ...
Best material raw DHD350 DTH drill bit for water well drilling and mining Features: 1.applicable hard,very hard and medium soft rock formations. 3.Good flushing effect to ensure high drilling rate 4.Strict quality warranty and compensation rules 5.Can match to the original Atlas Copco Cop54 etc. + Shank + Face shape + Carbide button shape Examples For Ordinary Bits Flat, spherical ( …
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