LED lights for strings, flowers, branches and other ornamental decorations; Air purifying units for domestic, industrial use; Plumbing fittings, namely, shower control valves; Sewage treatment plants; Gas injectors for disbursing solids and/or liquids for purification and sterilization purposes; Refrigerating appliances and installations; Pipe freezing unit comprised of cooling aggregate with refrigerant hoses and deep freezer heads; Electrical rice cookers; Water purifying apparatus for hous...