... Ladder material,anti-corrosion Well insulated,low maintenance FRP C Channel FRP C channels offer a unique combination of chemical ... -corrosion, construction, electric insulation, power development and telecommunications, communication tower etc, such as ladder rails, step stringers, horizontal supports, ... ItemsA (mm)B (mm)T1 (mm)Weight (kg/m) FRP Channels502040.5650 (2”)3040.7075252.50.67101 (4”)286.351 ...