In 2006, Rich’s tubes and rods were widely used by CNPC Logging (CPL), China Oilfield Service Limited (COSL), China Shipbuilding Industry Corporation (CSIC), Huanding Energy Services and Hangzhou Ruili Acoustic & Electric Technology Co., Ltd.
In 2006, Rich’s tubes and rods were widely used by CNPC Logging (CPL), China Oilfield Service Limited (COSL), China Shipbuilding Industry Corporation (CSIC), Huanding Energy Services and Hangzhou Ruili Acoustic & Electric Technology Co., Ltd.