set of mandatory sign, hazard sign, prohibited sign, occupational safety and health signs, warning signboard, fire emergency sign. for sticker, posters, and other material printing. easy to modify. Shutterstock .eps vector - set of mandatory sign, hazard sign, prohibited sign, occupational safety and health signs, warning signboard, fire emergency sign. for sticker, posters, and other material printing. easy to modify. - ID: 1374690980