Taken by a friend in Korea
Clean it with organic impregnant
Don't hang things in declining way
Mustn't roast things on stove
In winter, you'd better warm the interface appreciably with heating machine
Leatheroid and wet painty surface
a warning sign found in the stairwell of a building near Roppongi Crossing.
the security camera was way up in the corner of the stairwell and was very hard to hit...