To Manufacture a Kelly Bar Good--Brief introduction of Unidrill kelly manufacture processes

Latest News

• 2017/12/14
  Photos of Unidrill kelly bars

  Beijing Unidrill, devoted to supply the best matching Kelly bar for every pro...more

• 2017/12/07
  To Manufacture a Kelly Bar Good--Brief introduction of Unidrill kelly manufacture processes

  more

• 2017/12/07
  The first 138m depth pile successfully completed in Oujiang Bridge

  The diameter of the pile is 3m, and after 75hrs drilling with Unidrill Kelly ...more