D
TEXTILES; PAPER
D
TEXTILES; PAPER
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
D21J
FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
D21J
FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
D21J1/00
Fibreboard
D21J1/00
Fibreboard
D21J1/08
Impregnated or coated fibreboard
D21J1/08
Impregnated or coated fibreboard