drilling rig,Drilling Rig,30,40,50,70,90DBS,drill rig,factory price,09new style,tech from USADec 21, 2012
... , a patent of Honghua , the WOB is controlled precisely. The rig operation has realized the functions for collecting, display, storing ... is independent and lifted hydraulically (ZJ70DBS), without contacting the drill floor, with little vibration, and convenient for ... .init( { 'aImgSrc': aBigImageSrc } ); } )(); drilling rig,Drilling Rig,30,40,50,70,90DBS,drill rig,factory price,09new style,tech ...