1 wrench: https://freesound.org/people/CGEffex/sounds/96215/ Attribution 3.0 Unported (CC BY 3.0)
2 steam whistle 1: https://freesound.org/people/eliasheuninck/sounds/170464/ Attribution 3.0 Unported (CC BY 3.0)
3 steam relase: https://freesound.org/people/brunoboselli/sounds/457294/ cc0