HUWIL Key type 1550 [SK: H-3A6Z] 4A-4Z

Original HUWIL reversible key type 1550 with lock code 4I.
The locking number 4I is part of the locking circle [SK: H-3A6Z].
Original key from the manufacturer with lock code 4I.

At HUWIL keys and cylinders are numbered - following locking circles (SK) are available:
locking circle from number 2001 to number 2205 -> available from us as [SK: H-2],

locking circle from number 3001 to number 4000 -> available from us as [SK: H-3],
locking circle from number 5001 to number 6000 -> available from us as [SK: H-5],

locking circle from number 3A to number 3Z -> available from us as [SK: H-3A6Z] - 3A to 3Z,
locking circle from number 4A to number 4Z -> available from us as [SK: H-3A6Z] - 4A to 4Z,
locking circle from number 5A to number 5Z -> available from us as [SK: H-3A6Z] - 5A to 5Z,
locking circle from number 6A to number 6Z -> available from us as [SK: H-3A6Z] - 6A to 6Z.
locking circle from number 18501 to number 19000 -> available from us as [SK: L-85].