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China 8 1/2"roller cone rotary tools rock drill bit Steel tooth bit button insert drill bit roller cone factory

8 1/2"roller cone rotary tools rock drill bit Steel tooth bit button insert drill bit roller cone

8 1/2"roller cone rotary tools rock drill bit used tci tricone bit Product Specifications & Photos Size 8 1/2 steel tooth triconebit IADC 127 Bearing Type elastomer sealed bearing Thread Connection 4 1/2 API ... Read More
2018-04-04 20:34:12
China 17 1/2"roller cone rotary tools rock drill bit used tci tricone bit/milled tooth tricone drill head factory

17 1/2"roller cone rotary tools rock drill bit used tci tricone bit/milled tooth tricone drill head

17 1/2"roller cone rotary tools rock drill bit used tci tricone bit Product Specifications & Photos Size 12 1/4 steel tooth triconebit IADC 127 Bearing Type elastomer sealed bearing Thread Connection 6 5/8 API ... Read More
2018-09-07 14:27:42
China 19 1/4"roller cone rotary tools rock drill bit used tci tricone bit/milled tooth tricone drill head factory

19 1/4"roller cone rotary tools rock drill bit used tci tricone bit/milled tooth tricone drill head

19 1/4"roller cone rotary tools rock drill bit used tci tricone bit Product Specifications & Photos Size 19 1/4 steel tooth triconebit IADC 127 Bearing Type elastomer sealed bearing Thread Connection 7 5/8 API ... Read More
2017-10-24 19:27:44
China good quality steel tooth bit 19 1/4"roller cone rotary tools rock drill bit used tci tricone bit/milled tooth triconebit factory

good quality steel tooth bit 19 1/4"roller cone rotary tools rock drill bit used tci tricone bit/milled tooth triconebit

19 1/4"roller cone rotary tools rock drill bit used tci tricone bit Product Specifications & Photos Size 19 1/4 steel tooth triconebit IADC 127 Bearing Type elastomer sealed bearing Thread Connection 7 5/8 API ... Read More
2016-05-16 21:18:53
China API 19 1/4'' IADC 137 sealed journal bearing steel tooth bit for water well drilling factory

API 19 1/4'' IADC 137 sealed journal bearing steel tooth bit for water well drilling

19 1/4"roller cone rotary tools rock drill bit used tci tricone bit Product Specifications & Photos Size 19 1/4 steel tooth triconebit IADC 127 Bearing Type elastomer sealed bearing Thread Connection 7 5/8 API ... Read More
2016-01-13 22:14:00
China 17 1/2inch milled teeth bit for soft  rock /steel tooth bit/tricone bit factory

17 1/2inch milled teeth bit for soft rock /steel tooth bit/tricone bit

17 1/2"roller cone rotary tools rock drill bit used tci tricone bit Product Specifications & Photos Size 12 1/4 steel tooth triconebit IADC 127 Bearing Type elastomer sealed bearing Thread Connection 6 5/8 API ... Read More
2018-04-03 14:17:26
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