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New products also mean more stringent requirements regarding cleanliness in terms of both residual particles and residual lubricants. We meet this challenge through optimisation of the entire process chain, from procurement via production to logistics. The production processes are further refined in a specific manner in order to prevent the formation of particles. Specifically selected cleaning concepts meeting the existing needs are used to remove residues. Witzenmann applies special cleaning systems for products with the highest cleanliness requirements.