... POM ball Product parameter: Pingxiang City Zhongxing Chemical Packing co.ltd is a professional manufacture which produced POM ball. ... used in cars, sensor, valves, pumps, valves, bathroom, electronic, bearing, electric appliances, and other industries. We sincerely welcome ... cars, plastic ball valves, pumps, sensor, wei yu, electronic, ball valves, bearings, electric appliances, and other industries. ...