Cast iron manhole cover C250

roundwith built-in lid

C250 cast iron manhole cover for road construction. for light duty main road, and for pavement. Cast iron, it is a very strong material which with good performance and physical ability. With very good anti-rust ability if painted with black bitumen. The built-in sealing strip is made of rubber, which can not only have airtight characteristics, but also reduce the noise when the car is pressed. Hing and lock can be installed to prevent other personnel from opening the manhole cover. The material of the manhole cover is nodular cast iron, which can be used for more than 30 years. Shape Round, square, rectangular Diameter from 200-1500mm Depth from 10-400mm Material Ductile iron GJS500-7 Loading ability EN124 C250 Customize Available Lock Lock and hinge available