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<title><![CDATA[EC21 Product Catalogs - quartz stone]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/quartz_stone--2644/1/quartz stone.html]]></link><item>
<title><![CDATA[Diamond Impregnated Bits, Diamond Core Bits, Impregnated Bits AQ BQ NQ HQ PQ]]></title><link><![CDATA[https://gzvilong.en.ec21.com/Diamond_Impregnated_Bits_Diamond_Core--10772805_10772810.html]]></link><description><![CDATA[Stone
Medium To Low
Hard
HRC 32-35
GV8/ GV9
Rhyolite, Crystauize Gneiss, Quartz Porphyry
Medium To Low
Hard
HRC 25-30
GV9/ GV10
Silicious Stone, Hard Sandstone
Medium To Low
Extreme Hard
HRC 20-25
GV]]></description><pubDate><![CDATA[20210520]]></pubDate></item>
<item>
<title><![CDATA[BQ Impregnated Diamond Core Bit]]></title><link><![CDATA[https://csdrilling.en.ec21.com/BQ_Impregnated_Diamond_Core_Bit--8382535_9984930.html]]></link><description><![CDATA[stone
HRC25~30
Hard
Medium to low
Rhyolite, crystauize, guneiss, quartz porphyry
HRC20~25
Extreme hard
Medium to low
Silicious stone, hard sandstone
HRC10~20
Ultra hard
Low
Rhyolite, dense quartzite,]]></description><pubDate><![CDATA[20160520]]></pubDate></item>

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