shannxi hainaisen petroleum technology Co.Ltd

Date: 20th February 2016
83/4" HM352XA PDC Oil Well puurida bitti / Steel keha PDC bitti / PDC Rock puurida bitti
Oil Well puurida bitti / Steel keha PDC bitti / PDC Rock Drill bitti/PDC labad Drill Bit/pakkumise Drill bitti PDC/tehase pakkumise kvaliteetse Diamond PDC Drill Bit
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