Ductile Iron Sewer Gulley Drains with Round/ Square Manhole Covers

1.Process: Sand Casting, Investment Casting  (Precision Casting/Lost-Wax Casting).
2.Casting experience: 10years,OEM service available
3.Surface: blackening, galvanize, plating,painting,etc.
4.Material: QT, iron, steel
5.Technology: sand casting
6.Advantages: Delivery on time,  according to the demand for materials
7.Packing: wooden case or as your requirement.
8.Deliverywithin 20 days after receiving last confirm information.
9.Production Capacity: Sand Casting 2000 tons per month,Investment Casting 120 tons per month.
10.Certification: ISO 9001:2008.



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 Characteristics of our manhole cover: 
 1. Material: cast gray iron, ductile iron.
  2. Shape: round, square, rectangle and triangle. 
 3. Diameter: from 200mm to 1200mm. 
 4. Weight: from 7kg to 154kg or according to customers\' requirment 
 5. Packing: in wooden  pallet with plastic layer
  6. Annual output: 10,000 tons 
 7. Coating: black bitumen or Coating as per customers\' requirement 
 8. Use :municipal engineering, Traffic, pavement ,electronics,telecom, cable, petroleum, chemical industry, or drainage system and industrial facilities of valve well.
 
D400 Clear Opening 400mm  Casting manhole cover/cast iron manhole cover price
 Clear Opening: 390*390mm
 Frame size: 490*490mm
 Frame depth: 75
 Testing Loading: D400
 Material: Ductile iron GGG500-7&400-12
 Standard : EN124


1. Advantage of our Manhole Covers 
   1) Can supply all kinds of load class Product such as A15/B125/C250/D400/E600/F900
   2) Against theft and safety, double sealed, watertight type
   3)material No. GGC50(DIN1693-73),QT500-7(GB/T1348-1988), 80-55-06(ASTM A536), FCD500(JISG 5502-2001),500/7(BS2789:1985).
   4)Free charge of design.
   5) 3 day pay for ready if the request in storck.
 
 2. Detailed information of manhole cover
1) Various manhole cover made by GX Foundry strictly conform to standard and free from sand holes, blowholes,distortion or any other defects
2)Processes:
  a) Automatic machine lines
  b) Moulding boards
  c) Green sand with hand moulding
3)Guarantee: GX Foundry will replace any heavy duty castings that have been properly installed and broken in normal use,free of charge after receipt of the broken castings.
2)Manufacturing process
1.Sample or Drawing by customer
2.Tooling proposal&Discussion
3.3D Tooling Design
4.Tooling production
5.Rough parts manufacturer
6.CNC Machining
7.Fitting&Finish
8.Tooling Measurement&Check
9.Assembly
10.Trial Production
11.Correction
12.Final Trial
13.Samples Inspection
14.Sample Approval by customer
15.Tooling Approval
16.Ductile iron sand casting

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1. 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.
 
2. Q: Do you provide OEM Service?
     A: Yes, we provide OEM Service.
 
3.  Q: Do you provide customized  products?
      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.