We can supply kinds of equipments what are used to oil fields, such as Drilling rigs, derrick, hook, rotary table and so on. Features Of Truck-mounted Drilling Rig:Derrick divided into A, K, (open type), tower type, such as masts and packaged-type. · A thigh-derrick with rectangular or triangular cross-section, such as type, capacity and local stability. The use of inter-connecting pin. Derrick ...