DIFF Subgroup
B28B 5/021 Full Title
Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping > on conveyors of the endless-belt or chain type (in combination with pressing rollers B28B3/12)
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.