![](/attachment/2017-05/27/B1131501911.jpg)
60-year history in drill bit design and manufactureBOMCO Chengdu Equipment Manufacturing Company is the unique roller cone bit manufacturer of CNPC. We have 60-year history in drill bit designing and manufacturing.From Shanghai Xinmin Mechanical Factory founded in 1922, we have been engaged in mechanical manufacturing for over 90 years. Since the first drill bit was produced in 1953, we never stop pursing new technology.In 1986, BOMCO acquired the API certificate. And in 1996 we got the DNV ISO quality certification. The CNAS authorized drill bit lab an... [
Details]