Leak testing and flow measurement machines, instruments and apparatus in the nature of electronic test instruments and associated software for use in leak testing and flow measurements; leak testing and flow measurement benches comprised of electronic control instruments, sealing tools, namely, gaskets and plugs, and associated software for use in leak testing and flow measurements and bench sold as a unit; leak and flow test equipment for aluminum, cast iron and steel engine components, namely, wheels and rims, cylinder heads, cylinder blocks, bed plates, head covers, steering boxes, oil sumps, gearboxes, filters, tanks, carters, manifolds; testing and measuring equipment in the nature of dimensional control benches for use in testing the compliance with drawings of industrial and automotive parts comprised of automatic in-line and off-line gauging dimensional control equipment with contact electronic calipers, air and electronic gauges which feature optoelectronic contactless measurement technologies by laser and vision systems; automatic in-line and off-line gauges for automotive and engine components, namely, wheels and rims, flywheels, engine shafts, hubs and supports, brake drums, steering boxes; functional testing and assembling benches for use in testing and assembling automotive and engine components and sub-systems, comprised of functional check equipment, performance evaluation equipment, durability and fatigue control equipment, and component characterization equipment; and test and measuring machines for wheels, rims, discs and tires for laboratory production lines