You can calculate the force needed to move it to get done sort of scale. Got to get the chemical mix right for predictable results. Someone I know used to get stuff from them when he worked in a slate mine. That was a big industry there, but not now.
We haven't been to Wales for years. It has a lot of industrial history for sure. We visited an coal mine that had been converted into a museum. Terrible working conditions for the miners back then.
You can calculate the force needed to move it to get done sort of scale. Got to get the chemical mix right for predictable results. Someone I know used to get stuff from them when he worked in a slate mine. That was a big industry there, but not now.
We haven't been to Wales for years. It has a lot of industrial history for sure. We visited an coal mine that had been converted into a museum. Terrible working conditions for the miners back then.