SUMEC Group Corporation SUMEC, founded in 1978, is a key member of the China National Machinery I ndustry Corporation SINOMACH. Through years of the exploration and innovation, it has become one of the largest import and export enterprises in China. SUMEC Machinery & Electric, is one of the sbusidiaries of SUMEC, who has stared to produce home appliance products since 1998 and till now we’re one of the largest water heaters producers, Building Materials ...