Square nodular cast iron manhole cover D400

Square nodular cast iron manhole cover D400, corrosion resistance, in line with the needs of environmental protection, painting beautify the city. Square nodular cast iron manhole cover D400 to meet the national standard, pressure resistance, bending resistance, impact resistance, heat, cold, acid resistance, can resist harsh climate. Square nodular cast iron manhole cover D400 natural anti-theft, well seat and manhole cover integrated design, prevent loss, protect the safety of pedestrians and vehicles. Square nodular cast iron manhole cover D400 pattern and size can be made according to your needs. Our company is engaged in production and processing, sales, after-sales service and other diversified operations. Let you one-stop procurement, save time, worry and effort.