Welcome to Jinlong Foundry Group, we are a reputable manufacturer of top quality cast iron products.

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rectangle heavy duty manhole cover


Quick details

· Shape: Rectangle

· Material: Ductile Iron GJS500-7

· Duty Class: EN124 B125 C250 D400

· Frame Style: Bottom Flange

· Gasket Material: Neoprene

· Lock Material: SS304

· Coating: Black Bitumen

· Standard: EN124-2015

· Surface Pattern: Customized

· Surface text: Customized

Quality Control Process

Raw Material Inspection

· Raw Material inspection including chemical

· components analysis, tensile strength test and etc.

Quality Control Groups

· Dimensions Test

· Manufacture process Inspection

· Process Inspection including sand cleaning, assembling, packing and coating

· Final Inspection including delivery marks and etc.

· Particular Tests for different products, such as Load Test, Hydro Test and etc.


· Chemical Components

· Microstructure Test

· Tensile Strength


For Storm Water (with circumscribed raised stubs on the cover)

For Foul Water (with rectangular raised stubs on the cover)

Designated to be used in Government roadway drainage

projects and maintenance projects.

Any other related products we can make

Manhole Frames & Covers

Catch Basin Frames & Grates

Valve Boxes

Meter Boxes


Automobile Castings

Ductile Iron Pipe Fittings

Fabricated Steel Products

Decorative Castings

Other Castings

We supply rectangle heavy duty manhole cover

Founded in 1993, located in Changsha City China, we devoted ourselves to casting industry for many years,has been exporting to Europe and Australia since 2001.

We are expecting become your long team partner, OEM & OED is welcomed.

DimensionsCustomer Required(200-1600mm)
MaterialDuctileIronor Cast Iron
Applicationconstruction, public road, water supply, Municipal,drainage system etc
Model NumberNPF600D
Brand NameCastKing or OEM
Place of OriginChina (Mainland)
Colorblack, grey, etc
Loading PressureA15, B125, C250, D400, E600, F900
Coatingblack bitumen coated,epoxy painting
MOQ1 set
TechniqueMoulding pressing
Longevity50 years
OEM serviceYes
PackageIron pallet and wooden case, or as per customers' requirements.
PaymentT/T L/C