The POLYCAST® 700 Series cast iron frame is designed for extreme load. The HARDNOSE cast iron frame strengthens the grating and drain assembly for extra durability. The POLYCAST® 700 Series is recommended for heavy commercial and military aircraft taxiways at moderate speeds, hard wheel forklift, pallet jacks, solid wheel carts, construction equipment and off-road vehicles. The 700AA frame is used with POLYCAST® 500 and POLYCAST® 600 channels to increase load class.
