北一路, Dongying, Shandong, China,
Nara PetroleumMechanical Manufacture Co. Ltd, located in the industrial park ofChina\\\'s second largest oil field-Shengli Oil Field, is a high-techprivate limited liability company which takes lead indeveloping, manufacturing and selling ...
ibop, drill collar, drill pipe, hwdp, drill bit, xo sub, lift sub, lifting bail, centralizers, stabilizers
