Scientific research and design services relating to the installation, design and manufacture of sluicerooms, sluiceroom slophoppers, disposable hoppers, sluices (sterilizers), manual sluices (sterilizers), sluiceroom storage cupboards, electrical and electronic sluiceroom appliances, sluicer disinfectors, incontinence pad, nappy, and biodegradable material macerators and macerators for clinical waste.;