- FEFCO 200
Folded corrugated boxes - FEFCO 300
More element one boxes - FEFCO 400
Boxes which can be put together - FEFCO 500
Teleszkopik boxes - FECFO 600
Boxes which can be put together from sheets - FEFCO 700
Boxes which can be folded - FEFCO 900
Inner structural units, answers