Abandoned Train Garage Escape

Assume that you are in a train garage with all the abandoned and not used train engines and train parts. You came to the garage in search of something and now you are not able to get out. You will have to find the key to the garage in order to escape from there. Look around and collect objects to solve the puzzles. Once you solve all the puzzles, you will be able to escape from the garage. All the best and have fun!