The lateral plate is thick section iron plate with heavy enough weight. The wire rope is always in tension while lifting and lowering empty elevator, which easier drum whipping and ... More >
Drilling Rig Substructure has three kinds: box-on-box type,double-lifting-type,screw-rising type.... More >
K- type Derrick Performance Speciality (Features) 1. The shape of fracture of derrick is K-type, that is front- open- type. 2. The derrick rising type:integral lifting type and boos... More >
