-
Steel Body Polycrystalline Diamond Compact Bit 6 1/2″ S135 5 blades
-
Bultuhang diyamante 13/16/19mm tagagawa ng pamutol ng PDC
-
8.5″ inches fixed cutter PDC Bi center bit supplier para sa rock drilling
-
API 8 1/2″ PDC Reaming Bits para sa Hard Rocks Drilling
-
API Reverse circulation rock drilling PDC bits para sa hard rock