precise laying of tracks using leveling devices at the fork in two tram tracks. a layer of gravel above which concrete sleepers are placed. rubber anti-vibration base made of rubber, edgeinsreuction Poster #761558946
precise laying of tracks using leveling devices at the fork in two tram tracks. a layer of gravel above which concrete sleepers are placed. rubber anti-vibration base made of rubber, edgeinsreuction Poster #761558946
