The gratings are made by stamping and thermal processes. The gratings are forced with fiberglass, so it can absorb the force in any direction.

The GRP gratings characteristics:

• Made by polyester resin forced with fiberglass; the fiberglass content is 65%.
• It is made in grey color in standard, but for option it can be asked in other colors.
• The surface is pressed concave, which eliminates the slip.