drilling rig,Drilling Rig,30,40,50,70,90DBS,drill rig,factory price,09new style,tech from USADec 21, 2012
... rig ,Drilling Rig,API 4F,8A export 100% to USAChina factory pricesWe are manufacturer and OEM of NOV corporation.Core components ... rig,Drilling Rig,30,40,50,70,90DBS,drill rig,factory price,09new style,tech from USA