8 1/2〞Replaceable trenchless tricone single roller bit
8 1/2'' single cutters, tricone cutters,tricone bit
8 1/2 ''single roller cone bit single cone
12 1/4''inches 311mm PDC drilling reamer hole opener
17 1/2''inches iADC 537 vertical drilling tci rock roller cone tricone hole opener
18''inches iADC 617 rock reamer roller cone hole opener
14''inches iADC 617 TCI roller cutter rock reamer hole opener
13 3/4''inches iADC 117 steel tooth hole opener rock reamer vertical drill bit
Our main products: tricone bits, PDC bits, HDD hole opener, foundation single roller cutters,drag bit and related tools
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Junziguan Industrial Zone, Hejian City, Hebei Province
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