C
CHEMISTRY; METALLURGY
C
CHEMISTRY; METALLURGY
C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
21/00
Compositions of unspecified rubbers
21/00
Compositions of unspecified rubbers