Manhole Covers TECHNICAL DRAWING TECHNICAL SPECIFICATION PRODUCT INFORMATION HEAVY DUTY CHANNEL GRATINGS FEATURES AND BENEFITS Made from Ductile iron as per International Standard ASTM A536-84(2014) For use in carriageway of roads, (including pedestrian streets), hard shoulders and parking areas for all types of road vehicles. Efficient grates for large water clearing capacity Suitable for fast moving vehicular traffic. Easy to Lift and Painted. All Products are proudly made in Nigeria with 100% Local Content. HEAVY DUTY CHANNEL RATINGS Application Truck Group 4 BS EN 124 Class D400 Test Load 400/KN Get a QuoteDownload Catalogue