shannxi hainaisen petroleum technology Co.Ltd

Date: 20th February 2016
9 1/2" HM642XA zoo API PDC laum tom rau roj teb rau ntawm qhov chaw tsim tshuaj paus suav
suav chaw tsim tshuaj paus/roj tshav/siab zoo/pdc laum khoom/pdc khoom
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