Main compositions: Patent resin particles, Azelaic acid, Thyme leaf, Extracting solution of grape PIP, Cornflower extract.

Main products include ductile manhole covers, composite resin covers, drill rod cement covers, galvanized steel grating, polymer alloy covers, cast iron manhole covers, flower bar, cast iron pipe.

The technics of adsorption and elution of nuciferine with polyamide resins as adsorbent was studied.