Mae 83/4"EM 652XA olew ychydig pwyllgor penderfyniadau cynllunio yn dda, diemwnt olew pwyllgor penderfyniadau cynllunio a drilio did, dril pwyllgor penderfyniadau cynllunio olew pwyllgor penderfyniad
perfformiad uchel /PDC dril darnau/olew pwyllgor penderfyniadau cynllunio da ychydig/diemwnt did /water dda graig galed
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81/2 "HM652XG صف واحد تك الصين النفط بت الحفر |
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83/4" HS662XA 6 noževa bušilica Bit, čelično tijelo PDC Bit, API Standard |
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121/4 HM952XA PDC bit kömür için benim "Delme PDC Matkap burguları için su kuyusu sondaj için |
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