shannxi hainaisen petroleum technology Co.Ltd

Date: 2nd March 2016
83/4" HS662XA 6 li tuaj laum ntsis, cev Steel PDC ntsis, API txuj
PDC LAUM NTSIS, STEEL CEV LAUM NTSIS, 6 HNIAV LAUM NTSIS, MEDIUM LAUM MOS MOS NTSIS, ROJ THIAB THO NTSIS,
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