shannxi hainaisen petroleum technology Co.Ltd

Date: 23rd February 2016
91/2"HM652XA China cyflenwr 2015 Hotselling pwyllgor penderfyniadau cynllunio dril darnau ar gyfer archwilio daearegol daith
Ychydig dril pwyllgor penderfyniadau cynllunio ansawdd /oil dril ychydig/safon uchel dril pwyllgor penderfyniadau cynllunio did / drilio rig ddrilio
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