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Yuk Wing Group Holdings Limited, an investment holding company, designs, manufactures, and trades in down-the-hole (DTH) rock drilling tools in Hong Kong, Macau, the People's Republic of China, and internationally. The company operates through Manufacturing and Trading of DTH Rockdrilling Tools; Trading of Piling and Drilling Machineries; and Trading of Rockdrilling Equipment segments. It offers DTH hammers, casing systems, button bits and bit openers, drill pipes, cluster drills, and casing tubes.