Core bitsType:corebitwithsteelbody Size:φ56-φ133(mm) Application:Suitablefordrillinginthesoftrockandmediumhardrock.Applicablerockformation:f≤8 Char
PDC Expansion model drilling bitsType:expansionmodel Size:φ113-φ270(mm) Application:Thisgroupofproductsisusedtopenetrationthedegassinghole,drainhole,andgroutingholeofcoalmine
PDC Sintered drillbitType:sintereddrillbits Size:φ65-φ133(mm) Application:Suitablefordrillinginthemediumhardtohardrock,stronggrindingstratumformation.Applicablero
PDC Pillar drill bitsType:Pillarmodel Size:φ60-φ133(mm) Application:Thisgroupofproductsisusedtopenetrationthedegassinghole,drainhole,andgroutingholeofcoalmine.App
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