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Manhole covers are mainly used to cover the openings of inspection Wells in urban underground infrastructure, and their core functions are protection and management.
Protecting underground facilities: Inspection Wells covering sewers, water supply pipes, gas pipes, power or communication cables to prevent people, vehicles from falling or foreign objects from entering, avoiding damage to the facilities.
Convenient for maintenance and repair: It can be opened at any time, providing a passage for staff to enter underground pipelines and cable Wells for maintenance, cleaning or troubleshooting.
Load-bearing and passage: Different load-bearing grades are designed based on usage scenarios (such as sidewalks and vehicle lanes) to ensure the normal passage of pedestrians, non-motorized vehicles or motor vehicles without affecting the ground traffic function.
Cangzhou Great Casting Product Specifications | ||||||
Product Name（5） | Extemal Size(mm) | Cover Diameter(mm) | Clear Opening(mm) | Depth(mm) | weight | Loading Capacity |
Double layer round manhole cover | ∅800 | ∅700 | ∅660 | 60 | 31KG | B125 |
Double layer round manhole cover | ∅800 | ∅700 | ∅660 | 60 | 39KG | B125 |
Double layer round manhole cover | ∅800 | ∅700 | ∅660 | 75 | 41KG | C250 |
Double layer round manhole cover | ∅800 | ∅700 | ∅660 | 75 | 46KG | C250 |
Double layer round manhole cover | ∅800 | ∅700 | ∅660 | 75 | 49KG | C250 |
Double layer round manhole cover | ∅800 | ∅700 | ∅660 | 75 | 52KG | D400 |
Double layer round manhole cover | ∅900 | ∅700 | ∅660 | 100 | 51KG | C250 |
Double layer round manhole cover | ∅900 | ∅700 | ∅660 | 100 | 59KG | D400 |
Double layer round manhole cover | ∅900 | ∅700 | ∅660 | 100 | 69KG | E600 |
Double layer round manhole cover | ∅900 | ∅800 | ∅760 | 50 | 35KG | A15 |
Double layer round manhole cover | ∅900 | ∅800 | ∅760 | 50 | 40KG | B125 |
Double layer round manhole cover | ∅900 | ∅800 | ∅760 | 75 | 49KG | C250 |
Double layer round manhole cover | ∅900 | ∅800 | ∅760 | 75 | 52KG | C250 |
Double layer round manhole cover | ∅900 | ∅800 | ∅760 | 75 | 57KG | D400 |
Cangzhou Great Casting Technologies Co., Ltd. which was established in January 2010. The company is located in Cangzhou City、Hebei Province,closing to Beijing&Tianjin in the north,Qilu in the South,Jinghu Highway in the west and Jingshan Highway and Huanghua Port in the east,the favorable geographic position makes the transportation quite convenient.
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Our ductile iron products are exported to all over the world, and we look forward to working with you for a win-win situation.
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