File with several kind of fasteners , pins and nuts

Collection strips for mines and design planes

pneumatic control of winche for fishing

Design plant of warm asphalt for roads ,strees avenues

Optional gate to contr of discharge materials

Control both the torque and speed of DCmotor - Used to achieve bridge of diodos, H bridge , drivers , sensing circuit...

Jaw crusher use for crushing rocks , in both: mining and rock quarry nonmetallic