shannxi hainaisen petroleum technology Co.Ltd

Date: 22nd February 2016
121/4" HM 952XAG Shaanxi Hainaisen pob zeb Diamond Pdc ntsis lwm tus neeg cov roj zoo Pdc Drilling khoom
laum ntsis muab khoom laum Tuam Tshoj tungsten carbide laum khoom pob zeb laum khoom pob zeb diamond pdc laum ntsis
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