Shandong, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
OEM/ODM Service
Sample Available

Drain Grates, Water Drainage, Drainage System manufacturer / supplier in China, offering Round Ductile Iron/Sand Manhole Covers of Chins Manufacturer, OEM Custom Sand Casting Small Spin Bike/Treadmill/Fitness Flywheel, OEM Exercise Bike Steel Sand Casting Price for Spinning/Gym/Motorcycle Flywheel and so on.

Gold Member Since 2014
Audited Supplier
Supplier Homepage Products Manhole cover Round Ductile Iron/Sand Manhole Covers of Chins Manufacturer

Round Ductile Iron/Sand Manhole Covers of Chins Manufacturer

Get Latest Price
Purchase Qty. / Reference FOB Price
1 Ton US $1,000
2+ Tons US $740
Port: Qingdao, China
Production Capacity: 5000ton/Month
Payment Terms: L/C, T/T, D/P
Type: Clay Dry Sand
Casting Method: Thermal Gravity Casting
Sand Core Type: Resin Sand Core
Application: Instrument Accessories
Machining: CNC Machining
Material: Iron

You Might Also Like


Basic Info

Model NO.: WF-JF
Surface Treatment: Sand Blast
Surface Roughness: Ra6.3
Standard: ASTM
Certification: ISO 9001:2008
Technics: Casting
Place of Origin: Shandong,China
Modle Number: Non-Standard
Dimension: Customized
Process: Hot Forging, Heat Treatment, CNC Machining
Unique: China Gold Supplier
Name: Steel Forging Auto Part
Technology: Casting + Machining
OEM and ODM: 100% with Drawings and Samples
Delivery: 30 Days After Payment
Trademark: ShengAo
Transport Package: Plywood Box
Specification: SGS, UL, CE, ISO9001: 2008
Origin: Weifang, Shangdong, China
HS Code: 87089910

Product Description

Round Ductile Iron/Cast Iron Manhole CoversRound Ductile Iron/Sand Manhole Covers of Chins ManufacturerRound Ductile Iron/Sand Manhole Covers of Chins Manufacturer
Round Ductile Iron/Sand Manhole Covers of Chins Manufacturer
Round Ductile Iron/Sand Manhole Covers of Chins ManufacturerRound Ductile Iron/Sand Manhole Covers of Chins ManufacturerRound Ductile Iron/Sand Manhole Covers of Chins ManufacturerFeatures:  
Manufactured to be BS EN124 Class D400 
Suitable for carriageway,main roads 
40tonne saft test load.
Works safety tested to 44tonnes =+10%
Ductile Iron improved weight to strength ratio.
Black coasted finish.
Besides,we are offering diverse range of manhole covers like:
1.Heavy Duty Square and Rectangular Manhole cover and frame.
2.Medium Duty Square and Rectangular manhole cover and frame.
3.Light Duty Square and Rectangular manhole cover and frame.
4.circular cover with circular frame
5.circular cover with square frame grating
7.bench leg,surface boxes,pipe fitting
Ductile iron and Grey iron
Grade:A15 B125 C250 D400 E600
Primary competitive advantages:
a.excellent and high qulity control
b.prompt delivery
c.small order accepted
d.OEM service
e.customers drawings or samples accepted.
f.packing:carton,wooden case,pallets or according to customers requirements.
g.Certificate:ISO 9001:2008 
If you are interested in above products.Please let us know.You will get our best FOB/CIF price after got your specific request.

Our Services
Design - Manufacture - Sale - Service  
Any sizes and types of Cast Iron manhole covers / gratings can be customized.
Product Quality:
Service life: 30 years . (We guarantee that our manhole covers won't break and out of shape after 30 million times roller 
compaction. ) High strength, high elongation and high corrosion resistance's ductile cast iron be used as the raw material 
for making manhole covers. Its strength is much higher than No.45 superior carbon steel, 3~5 times higher than common
cast iron covers. 10~30 times higher than cement, resin, steel fiber and so on.  
1. Manhole cover and road grate sample can be sent. 
2. Customer marking acceptable
3. AutoCAD design 
4.As the independent thrid part to check the product for oversea customer and supply the lawfull product quality report.
5.execute the BS EN 124 standard to promise the customer's product quality.
Please contact us for more information:            
All the pattern or words on the surface of manhole cover you need, we can manufacture it for you.I represent all my company members welcome every golbal friends to visit our company for our more development and good bussiness with you. 
Packaging & Shipping
Standard export packaging. Client's suggestions can be accepted.
materialductile iron GGG50/7, grey iron




600*600,840*840, 850*850 or as per customers' drawing


bituminous black


Non-slip and safe, easy installation, easy to clean, good anti-pressure and attractive appearance

production steps

Drawing-mould making-raw casting-sand blasting-rough machining-surface treatment-product inspection


footway, ,drave way,car parks, aircraft pavements,garden and so on.


BSI, ISO9001:2000,

Strict quality contol

Tensile strength: 500Mpa                        Yield stress: 320Mpa
Elongation rate: 7%
Hardness: HBS170-230

Area of exported

Europe,Africa,North America,Sounth Asia and Sounth America

Main products

Gully Grating,Drain Channel,Tree Guards,Road Bollards manhole cover
materialductile iron GGG50/7, gray iron
Size600*600,840*840, 850*850 or as per customers' drawing
paintbituminous black
advantageNon-slip and safe, easy installation, easy to clean, excellent anti-pressure and attractive appearance
moldingDISA Line
processDrawing-mould making-raw casting-sand blasting-rough machining-surface treatment-product inspection
applicationfootway, pedestrians, car parks, aircraft pavements
certificateBSI, ISO9001:2000
Strict quality controlTensile strength: 500Mpa                        
Yield stress :  320Mpa
Elongation rate :  7%
Hardness: HBS170-230                               
Main productsManhole covers and grates, Furnace, bases, Machinery parts, cookers, Valve bodies, pipe fittings, Auto parts
other informationwe can cast and process any type of iron casting products according to customers' drawing or samples

Round Ductile Iron/Cast Iron Manhole Covers

Q: Why choose Shengao product?
A: We shengao have our own plant-- Weifang Shengao machinery Co., Ltd, therefore, we can surely promise the quality of every product and provide you comparable price.

Q: Do you provide OEM Service?
A: Yes, we provide OEM Service.

Q: Do you provide customized manhole cover?
A: Yes. Customers give us drawings and specifications, and we will manufact accordingly.

4. Q: What is your payment term?
A: We provide kinds of payment terms such as L/C, T/T, Paypal, Escrow, etc.

Our main products: manhole; manhole cover; drain covers; cover drive; man hole; sewer manhole; manhole frame; manhole covers for sale; recessed manhole covers; cast iron manhole covers; manhole covers round; manhole cover manufacturers; double sealed manhole cover; sewer cover; cast iron drain cover; heavy duty manhole covers; round manhole covers; metal drain covers; sealed manhole covers; manhole cover and frame; grate covers; round drain covers; sewer manhole cover; manhole cover suppliers; drain covers grates; sewer covers drain covers; iron manhole cover; recessed drain cover; manway cover; metal manhole cover; manhole cover frame

If there's anything I can help, please feel free to contact with me.

Send your message to this supplier

avatar Miss Kate Jing

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now