The ORTO series composite grating is based on orthophthalic resin, for use in facilities where the use of aggressive chemical media is minimized. It withstands weak solutions of acids, alkalis, and salts.

ISO series composite grating is based on isophthalic resin, for use in facilities where contact with aggressive chemicals is possible – inorganic acids, alkali solutions, salts, etc.

The composite grid of the FD series is based on orthophthalic food resin, for use in food processing and animal husbandry facilities.