Shandong Rongli Petroleum Machinery Co., Ltd.
Add.: No. 3333, Northern Haidai Road, Qingzhou City, Shandong Province, China
Post Code: 262500
Tel.:
+86-400-860-1766 (service hotline)
+86-536-2130788
Fax: +86-536-2130381
Contact Person: Mr.Wang
E-mail: rongli_machinery@163.com

Patents
  • Certificate of utility model patent
    for a drilling fluid vacuum
    degassing device
  • Certificate of utility model patent
    for a guide frame pressing plate
    of the water filling valve in drilling
    pump.
  • Certificate of utility model patent
    for a hydraulic cylinder of drilling
    pump


  • Certificate of utility model patent
    for a spray pipe fixing device
    used in drilling pump
  • Certificate of utility model patent
    for a auxiliary device used for
    drilling pump piston dismounting
  • Certificate of utility model patent
    for a forced lubrication device
    used for drilling pump
  • Certificate of utility model patent
    for a sealing device of the
    intermediate rod of drilling pump
  • Certificate of utility model patent
    for a combined sealing device
    for the principal axis of drilling
    pump
  • Certificate of utility model patent
    for a corrugated pipe booster
    drilling pump

  • Certificate of utility model patent
    for a structure-modified drilling
    pump piston