URI
Notation
678
Caption
Industries based on macromolecular materials. Rubber industry. Plastics industry
See also
547Organic chemistry
66Chemical technology. Chemical and related industries
Broader class
67  Various industries, trades and crafts
Narrower classes
678.4Natural rubber. Other natural macromoleculars containing only carbon and hydrogen
678.5Plastics
678.6Synthetic polycondensation products. Polycondensates. Synthetic resins. Synthetic fibres etc.
678.7Synthetic polymerization products. Polymerizates. Synthetic rubbers