Technology development of automation equipment, semiconductor equipment, spray cleaning machines, stencil cleaning machines, carrier cleaning machines, semiconductor cleaning machines, plasma cleaning machines, printing presses, cleaning machines, rental and sales of automation equipment, electronic products, R&D and sales of electronic automation equipment; assembly lines, plug-in lines, assembly lines, final assembly lines, docking stations, wave soldering, reflow soldering, patch machines, machine equipment accessories and on-site maintenance; research and development, production and sales, processing: hardware products, mechanical equipment, electronic equipment,