CPC Subgroup
C04B 16/02 Cellulosic materials (cellulosic waste materials, e.g. sawdust, rice husks, C04B18/24)
Full Title
Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone > Cellulosic materials (cellulosic waste materials, e.g. sawdust, rice husks, C04B18/24)