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Guizhou Sinodrills Equipment Co.,Ltd

Rock Drilling Tools, DTH Drilling Tools, Casing Drilling, Drag Bits, Self Dri...

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Step Drag Bits
Sinodrills Step Drag BitsStep drag bit: three wings step drag bit,&nb 		2019-01-06
Sinodrills Step Drag Bit
Sinodrills Step Drag BitStep drag bit: three wings step drag bit, four wings step drag bit.Step drag bits diameter: 76mm 		2014-03-21
Sinodrills Chevron Drag Bit
Sinodrills Chevron Drag BitChevron drag bit: three wings chevron drag bit, four wings chevron drag bit.Chevron drag bits 		2014-03-21
Sinodrills Step Drag Bit
Sinodrills Step Drag BitStep drag bit: three wings step drag bit,&nbs 		2012-07-27
Sinodrills Chevron Drag Bit
Sinodrills Chevron Drag BitChevron drag bit: three wings chevron drag  		2012-07-27
Step Drag Bit
Sinodrills Step Drag BitStep drag bit: three wings step drag bit,&nbs 		2012-05-23
Chevron Drag Bit
Sinodrills Chevron Drag BitChevron drag bit: three wings chevron drag  		2012-05-23
Drag Bit
Sinodrills Step Drag BitStep drag bit: three wings step drag bit,&nbs 		2012-04-13
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