... in small spare parts GQ-2 is a type of portable drilling rig.It is mainly used in areas of environmental geology, ... governance; core identify of small bridge,roadbed,retaining walls and high ways.Drilling Dep. 10-15m Rod Dia. 42mmRotation Sp. 775, ... new AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); GQ2 Portable Drilling Rig,10meter,water well and core capable