英文關鍵字
background
block
blockchain
chain
chained
chrome
close
closeup
concept
connection
cyber
enchain
heavy
industrial
iron
metal
metallic
motion
protected
protection
safe
safety
secure
security
shiny
silver
stainless
steel
strength
symbol
white
英文關鍵字
background
block
blockchain
chain
chained
chrome
close
closeup
concept
connection
cyber
enchain
heavy
industrial
iron
metal
metallic
motion
protected
protection
safe
safety
secure
security
shiny
silver
stainless
steel
strength
symbol
white