Tricone Bit Roller Cone Bit for Oil Drilling Improved Meal-Sealed Bearing

=== Base Info ===

• Model NO.：11 5,8 FJ-517G
• Type：Production Drill
• Usage：Well Drilling
• Certification：API
• Trademark：Superior
• Transport Package：Carton or Wooden Box
• Origin：China
• HS Code：8431432000

=== Description ===