9 PACKING MATERIALS FOR FILLING REACTION COLUMNS, IN THE FORM OF SMALL BEADS, RINGS, SHORT LINKS OF TUBE, SPIRALS; SCIENTIFIC EQUIPMENT FOR LABORATORY USE-NAMELY, VESSELS, JARS, FLASKS, STIRRING RODS, FOR REACTION, ANALYZING OR MEASURING PURPOSES; PARTS AND FITTINGS FOR COMPUTERS, ALL CONSISTING OR LARGELY CONSISTING OF SYNTHETIC MATERIAL