Product Description

1.Thick base,load-bearing and compressive—It is made of nodular cast iron Q500-7,with a tensile strength greater than 800 Newtons/mm²,compressive and load-bearing,and meets national testing standards.
2.Unique design,safe and reliable—The product is designed in accordance with nechanical engineering,high-temperature grinding and pressing,high strength,good toughness,anti-corrosion,wear resistance,impact resistance,high and low temperature resistance.
3.Easy to construct,strong anti-theft—It is east to open the manhole cover,abandon the previous detachable manhole coverdesign,and adopt the opening and closing design to prevent the manhole cover from being stolen and lost.
4.Reinforcement and reinforcement—The heavy-duty manhole cover is reinforced and reinforced the manhole cover is matched and fomed. The well seat and the manhole cover are integrated to effectively prevent urban noise.