9 Data processing apparatus; apparatus for digital signal processing, namely, digital signal processors and computers; scientific, electric, electronic, checking, and inspection apparatus and instruments used in the field of plumbing fittings, namely, industrial calibration sensors for plumbing fittings and endoscopy cameras for industrial purposes; checking and inspection systems and equipment in the field of plumbing fittings, namely, industrial calibration sensors for plumbing fittings, endoscopy cameras for industrial purposes, and ultrasonic control machines; data processing apparatus, namely computers; electric and electronic apparatus and instruments for processing, transmitting, broadcasting, receiving, and recording data; recorded software programs for collecting and processing data and for predictive maintenance; computer software platforms in the form of recorded and downloadable software for collecting and processing data and for predictive maintenance; downloadable and recorded software for collecting and processing data and for predictive maintenance; downloadable software applications for collecting and processing data and for predictive maintenance; downloadable software and software applications for the remote checking, monitoring, maintenance and diagnosis of plumbing equipment; downloadable and recorded virtual reality software for data visualization, predictive maintenance, technical training, mechanical design and augmented reality software for data visualization, predictive maintenance, technical training, mechanical design; sensors, namely, proximity sensors, motion sensors, temperature sensors, pressure sensors, optical sensors; optical identification apparatus, namely, code readers, laser scanners; electric and electronic apparatus for radio identification purposes, namely, radio frequency identification tag readers; electronic chips, namely, electronic chips for the manufacture of integrated circuits and blank electronic chip cards