... gear transmission, stepless speed regulating, the brake adopts hydraulic disk brake and dynamic brake together, with simple ... system for working s tatus of mechanical, electric, hydraulic and pneumatic implements, failure alarm and failure self ... oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); drilling rig,Drilling Rig,30,40,50,70,90DBS,drill rig,factory price,09new style,tech from USA