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BALL JOINTSQDSpecification:
- Sliding contact surface 
  Steel vs. Zinc based alloy steel
- Materials 
  Thread stud is made of carbon steel, housing is made of Zinc based alloy steel
- Treatment
  Stud is black oxide coated or Zinc plated
- Features of structure
  The unit consists of a housing race and a thread stud
- Properties
  Self-alignment, easy installation
- Application
  Automatic control components etc









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