Steel support /stiːl səˈpɔːrt/ – a mountain support made of metal components and assemblies. Mainly used in coal and shale mines. It is divided into support for vertical, horizontal and inclined workings, junctions and production workings.
Steel support /stiːl səˈpɔːrt/ – a mountain support made of metal components and assemblies. Mainly used in coal and shale mines. It is divided into support for vertical, horizontal and inclined workings, junctions and production workings.
