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<title><![CDATA[EC21 Product Catalogs - back stem]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/back_stem--2644/1/back stem.html]]></link><item>
<title><![CDATA[Leg Drill Spare Parts]]></title><link><![CDATA[https://ergkorea.en.ec21.com/Leg_Drill_Spare_Parts--6890951_7442191.html]]></link><description><![CDATA[BACK HEAD GROUP
BACK HEAD ASSY
BACK HEAD WASHER
CONTROL VALVE BUSHING
THROTTLE VALVE
THROTTLE VALVE HANDLE
THROTTLE VALVE PLUNGER
THROTTLE VALVE SPRING
THROTTLE VALVE BOLT
H NUT
SPRING WASHER
HOSE CO]]></description><pubDate><![CDATA[20231212]]></pubDate></item>
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<title><![CDATA[Oilfield Cementing Tools Float Collar &amp; Float Shoe]]></title><link><![CDATA[https://senwell2008.en.ec21.com/Oilfield_Cementing_Tools_Float_Collar--9714769_9714948.html]]></link><description><![CDATA[back-pressure valve type. It has a high reliability.
The structures are similar between float collar (see picture 1) and float shoe (see picture 2). The lower end of the float collar is the pin conne]]></description><pubDate><![CDATA[20170304]]></pubDate></item>
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<title><![CDATA[TCI(Tungsten Carbide Insert) Tricone Drill Bit for Hard Rock Formation Blasting Using]]></title><link><![CDATA[https://amyzhang86.en.ec21.com/TCI_Tungsten_Carbide_Insert_Tricone--11743960_11744667.html]]></link><description><![CDATA[stem and rotates along with it, and drive cones to pressed on the rock. Each cone rotates round the axis of its leg and three cones simultaneously revolve around the bit center. The tungsten carbide ]]></description><pubDate><![CDATA[20230310]]></pubDate></item>

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