Pressure-locked grating, 33x33 mesh, galvanized C 250., Pressure-locked grating, 33x15 heelguard mesh, galvanized C 250., Pressure-locked grating, 22x66 mesh, galvanized D 400., Pressure-locked grating, 15x66 heelguard mesh, galvanized D 400., Embossed metal sheet plate Th. 3, galvanized D 400., Ductile iron grating D 400., Ductile iron grating E 600., No grating required.