Isolated pictogram round sign of keep door closed do not open door indoor office for industrial

Related tags:

• prohibited
• prohibition sign
• ban
• forbidden
• no sign
• door open
• close door
• safety signs
• dont
• enter
• door
• door frame
• entry
• pictogram
• door lock
• warning
• black circle
• cross symbol
• entrance
• danger
• locked
• unlock
• circle
• symbol
• round
• door sign
• danger sign
• gate
• road sign
• exit
• road safety
• exit sign
• 26+