… solid mineral fuels, ceramic paste, unhardened cements, plastering materials or other mineral products in powder or …
Explanatory notes
… solid mineral fuels, ceramic paste, unhardened cements, plastering materials or other mineral products in powder or … short rods (e.g., of steel or porcelain). The material is placed in the rotating drum and is crushed or ground by the … simply placed side by side (fixed or transportable asphalt plant). (3) Ore mixers . (4) Machines for mixing coal dust, …