Puyang Runshi Petroleum Drilling Technology Service Co., Ltd.

Transtone Bits, Puyang Runshi Petroleum Drilling Technology Service Co., Ltd. is the unique roller cone bitmanufacturer of CNPC. It has a 60-year history in drill bit designing and manufacturing.
From Shanghai Xinmin Mechanica Factory founded in 1922, Transtone Bits has been engaging in mechanical manufacturing for over 90 years.since the first drill bit was produced in 1953, the innovative Transtone bits never stop pursing new technology.