7 Machines for crushing and treatment of solid matter, in particular of coffee, cocoa, oil seed, nuts, fertilizer, sugar, color pigments, metal powder, powder paints, cosmetics, spices, grain, plastics or the like, in particular milling tools, grinding machines, pre-shredders, mills, presses, air separators and machines for fine grinding and ultra-fine grinding; machines for conveying, screening and de-dusting of ground, grainy or bar-shaped products; accessories and spare-parts for all the aforementioned machines; machines for the cocoa and chocolate industry, in particular cleaning machines, winnovers in the nature of machines to sort out beans having an unsuitable quality, milling machines, cocoa paste treatment machines, cocoa presses; machines for the cocoa and chocolate industry, namely, kneading and mixing machines, roller mills and conching machines; machines for the production of almond and nut products; machines for peeling, for oil bath treatment and for oiling almonds and nut products and coating of nuts and almonds, for the production of paste and raw mixture including the production of marzipan and persipan; sorting machines for beans; mixing machines and machine parts therefor; filling machines and machine parts therefor; silo filling machines and machine parts therefor; exhaust gas catalytic converters for roasting plants