7 Machine tools for crushing rock, removing waste material and cutting and forming of materials; Construction machines, namely, cutting machines for ground trenches, machines for paving asphalt, drilling machines, boring machines, rock drills, drilling rigs, power drilling bits, revolving cutting machines, excavating machines, cranes, earth moving machines; machines for public works and for building permanent engineering and civil engineering structures in the nature of cutting machines for ground trenches, machines for paving asphalt, drilling machines, boring machines, rock drills, drilling rigs, power drilling bits, revolving cutting machines, excavating machines, cranes, earth moving machines; machines for construction, repair, maintenance and reinforcement of port facilities in the nature of cutting machines for ground trenches, machines for paving asphalt, drilling machines, boring machines, rock drills, drilling rigs, power drilling bits, revolving cutting machines, excavating machines, cranes, earth moving machines; mechanical manipulators for construction, repair, reinforcement, maintenance and demolition of port facilities, namely, cranes, power-operated fork lifts, drum positioner for loading; excavators in the nature of earth-moving machines; lifting and hoisting apparatus and machines, namely, machines for lifting shipping containers; cranes; machines for ground excavation especially for creating trenches or walls in the ground; handling machines, namely, palletizers, automatic pallet dispensing machines, cargo handling machines; machines for handling port containers