Calcium carbonate; industrial chemicals for use as plastic conditioners; industrial chemicals for use as paper conditioners; chemical intensifiers for paper; sealing agents for industrial purposes; coating agents for paper; industrial chemicals for use as fillers for gum; industrial chemicals for use as fillers for plastics; industrial chemicals for use as fillers for sealants; industrial chemicals for use as fillers for coatings and paints; industrial chemicals for use as fillers for inks; industrial chemicals for use as fillers for paper; industrial chemicals for use in the production of synthetic rubber; industrial chemicals for use in the manufacture of plastics; industrial chemicals for use in the manufacture of sealants; industrial chemicals for use in the manufacture of coatings and paints; industrial chemicals for use in the manufacture of inks; industrial chemicals for use in the manufacture of paper; industrial chemicals for use in the manufacture of adhesives; industrial chemicals; glue and adhesives for industrial purposes; oil cement [putty]; chemical compositions for developing photographs; unprocessed plastics; synthetic resins, unprocessed