機器
3d
background
bank
banking
box
business
cell
closed
code
combination
concept
deposit
door
finance
firewall
front
gold
illustration
insurance
lock
metal
metallic
money
object
open
part
password
protect
protection
render
room
safe
safety
savings
secrecy
secure
security
solid
steel
storage
strength
stronghold
system
treasure
trust
vault
vaulted
view
wealth