This sample video contains extracts from the Underground Longwall Shield Extraction Training Video produced by F.T.I. Pty Ltd.
For further information about F.T.I. visit [ Ссылка ]
![](https://i.ytimg.com/vi/pk6fKKe0yKA/maxresdefault.jpg)
This sample video contains extracts from the Underground Longwall Shield Extraction Training Video produced by F.T.I. Pty Ltd.
For further information about F.T.I. visit [ Ссылка ]