... research, design, manufacturing and assembly of land oil drilling rig and equipments for oil exploration and development since ... to 1000HP.Tefico rig equipmentsinclude mast, substructure, crown block, rotary table, drawworks, travelling block, mud pump, hook, top drive etc. 3 ... Baoji city, Shaanxi Province, which is the biggest drilling production base, so related equipments are fully furnished here ...