PROCESS TECHNOLOGY MACHINES FOR LIQUID-SOLID SEPARATION, NAMELY, CENTRIFUGES; FILTERS FOR MECHANICAL PURPOSES, NAMELY, VACUUM DISC FILTERS, VACUUM DRUM FILTERS, PRESSURE DRUM FILTERS, CROSS-FLOW-FILTERS AND SYSTEMS PREDOMINANTLY COMPOSED OF PROCESS TECHNOLOGY MACHINES, NAMELY, VACUUM SYSTEMS, HEATING SYSTEMS, CIP-SYSTEMS, CONTAINMENT SYSTEMS THAT INCORPORATE FILTERS, CENTRIFUGES, DRYERS AND PERIPHERAL EQUIPMENT, NAMELY, PIPING, GRATERS AND LOCKS