Hong Yue is a professional manufacturer and supplier of manhole and sewer hole covers. All the products at our factory can be customized.

The manhole cover is used to cover roads or deep wells to prevent people or objects from falling. According to the material, it can be divided into metal manhole cover, high strength fiber cement concrete manhole cover, resin manhole cover and so on.

Generally used in a circle, it can be used for green belts, sidewalks, motor vehicles, docks, alleys, etc.

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Products Specifications

Dimensions: Customers' drawing (can be customized)

Material: Ductile cast iron, grey cast iron, steel

Process: Sand casting, shell core casting

Machine: Lathe, CNC machine, Turning machine, drilling machine, milling machine

Casting tolerance: Min: 0.05mm

Machining tolerance: Min: 0.02mm

Surface Treatment: Painting, power coating, spraying, galvanizing, chrome plating

Standard: ASTM, JIS, DIN, BAS, GB

Inspection: 100% inspection

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CLASS A15 - Areas to be used only by pedestrians and cyclists.

CLASS B125 - Pavements, pedestrianized areas and similar Surfaces,parking areas and multistory car parks.

CLASS C250 - For covering devices installed on roadsides and in gutters at the side of streets.

CLASS D400 - Road Surfaces (including pedestrianized streets), hard shoulders and parking areas for vehicles of all kinds.

CLASS E600 - Areas used by heavy vehicles, such as Surfaces in airport and dock facilities.

CLASS F900 - Areas subject to particularly heavy loading, for example Surfaces in airports.

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Product Advantage Of  Manhole Cover Double Seal

casting parts

1.Quality Guarantee

--Mechanical, chemical and microstructure test

--Test with flaw detector after rough machining

--Completed quality control system

--Long warranty time

2.Quality Document

--Mechanical, chemical and microstructure test report

--Quality Control Report

3.Packing and Shipping

--Standard export package(carton/wooden case/iron case/pallet)

--FOB, FAS, CNF,CIF,CFR, door to door, etc accepted, or customer designated shipping agent

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