ECMA codes decryption. Group "B"

Unit	Code	Design
Base	10	Unglued with 4 double walls
	11	Unglued with 4 double walls and webbed corners
	14	Unglued with hollow walls
	15	Single walls with hooks
	20	Unglued with 2 double walls and locks
	30	Self locking, glued or unglued
	31	Self locking, glued or unglued, webbed corners
	32	Self locking, 4 double walls, with integrated flange
	40	Glued, single walls
	42	Glued, 1 double wall
	44	Glued, 2 double walls
	46	Glued, 3 double walls
	48	Glued, 4 double walls
	49	Glued with hollow walls
Closing system	00	No
	01	Claw lock
	02	Inserted side flaps and elongate walls
	03	Inserted side flaps and additional fixing
	04	Claw locks and dust flaps
	05	Inserted side flaps with hooks
	06	Hooks
	07	Dust flaps with hooks
	08	Inserted dust flaps
	10	Unglued non-webbed flaps
	11	Unglued webbed flaps
	20	Glued non-webbed flaps
	21	Glued dust flaps
	22	Glued inner flaps
	23	Glued inner dust flaps
	24	Glued outer flaps
	25	Glued outer dust flaps
Dust flaps	00	No
	81	1 dust flap
	82	2 dust flaps
	83	3 dust flaps
	84	4 dust flaps
Lid	00	No
	50	Tuck flap
	51	Double walls and retractable lock
	52	2 side flaps
	53	3 side flaps, open corners
	54	3 side flaps, dustproof corners
	55	Hooks
	60	3 side flaps, closed corners
	61	3 side flaps, gluded corners