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<title><![CDATA[EC21 Product Catalogs - concave drill bit]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/concave-drill-bit--2644/1/concave drill bit.html]]></link><item>
<title><![CDATA[Dth Bit for CIR90/100/110/120 Inch]]></title><link><![CDATA[https://reekerock.en.ec21.com/Dth-Bit-for-CIR90-100--12046530_12046535.html]]></link><description><![CDATA[drill pipe conduction to the impactor, the impactor impacts the piston under the action of air, and the piston drives the drill bit, thus achieving the purpose of drilling.
Face:flat face / concave f]]></description><pubDate><![CDATA[20250304]]></pubDate></item>
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<title><![CDATA[RC543 Reverse Circulation Dth Drill Bits for Deep Exploration Drilling]]></title><link><![CDATA[https://ksqdrilling.en.ec21.com/RC543-Reverse-Circulation-Dth-Drill--11913418_11934901.html]]></link><description><![CDATA[bit shape
Spherical, Ballistic,Conical
Face shape
flat face, concave, convex, etc.
Certification
ISO
RC series reverse circulation DTH Hammer is the latest developed product of our company. It is mai]]></description><pubDate><![CDATA[20240511]]></pubDate></item>
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<title><![CDATA[4&apos;&apos;Button Bit From  Factory with Great Price]]></title><link><![CDATA[https://cyndee4125.en.ec21.com/4-Button-Bit-From--10512257_10512651.html]]></link><description><![CDATA[drilling in medium-hard and moderately abrasive rock.
4. Convex front Ballistic 
Application: For drilling at high penetration rates in non-abrasive rock.
5. Concave front Spherical.
Application: For]]></description><pubDate><![CDATA[20230810]]></pubDate></item>

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