I made a bunch of warning signs for the Iudice Mineração quarry as part of the yearly safety updates. The new logo, that I designed as well, is featured on all of the new signs. The symbols used are all from the Brazilian safety standards set. This particular sign is made partly of recycled materials and a type of fiberglass. Besides acting as the board the fiberglass helps with the paint durability.
This image shows a blowup of the Iudice Mineração and CIPA safety logos.