15
2022
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09
Drill bit diameter: 89mm,102mm,115mm,127mm,152mm
Lianhuashan drilling tools, striving to pursue the high quality of drilling tools
Drill bit diameter: 89mm,102mm,115mm,127mm,152mm
Connection thread: T51 ST58 ST68
Design features: concave design tooth 9 alloy teeth, regular ball tooth alloy
Lianhuashan drilling tools, striving to pursue the high quality of drilling tools
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