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We can produce all kinds of manhole covers based on customer drawings or samples. OEM and ODM services are welcome. Our products include Ductile Iron Manhole Covers, Cast Iron Manhole Covers, Heavy Duty Manhole Covers, Drain Grate Covers, Inspection Chamber Covers, Sewer Lids, Double Seal Manhole Covers, Sealed Manhole Covers, and more.
### Key Features:
- **Model No.:** As per your drawing
- **Surface Treatment:** Spray Paint
- **Surface Roughness:** Ra0.8
- **Standard:** GB
- **Certification:** CE, ISO 9001:2008
- **Item:** A15 Manhole Covers & Grey Manhole Cover with ISO
- **Raw Material:** Ductile Iron, Cast Iron, Qt500-7
- **Size:** 850x850mm
- **Technics:** Casting
- **Brand Name:** Shengao, OEM
- **Factory:** Over 15 years of experience
- **Surface:** Polishing, Anodizing, Powder Coating
- **Process:** Sand Casting + Machining
- **Welcome:** Drawings of Manhole Cover
- **Export Markets:** Global
- **Trademark:** Shengao
- **Transport Package:** Pallet, Iron Frame, Flywood Box
- **Specification:** SGS, ISO9001:2008, EN124, ASTM, GB, DIN, CE
- **Origin:** Weifang City, Shandong Province
- **HS Code:** 7325109000
### Product Details:
1. **Material & Standard:** Grey Iron, Ductile Iron, Malleable Iron, Carbon Steel, Alloy Steel (High Manganese, High Chromium), Stainless Steel, Aluminum Alloy, Copper Alloy
2. **Molding Process:** Green Sand, Resin Sand, Waterglass Sand, Lost Wax/Silicon Sol, Die Casting
3. **Melting Facilities:** Cupola Furnace, Medium Frequency Induction Electric Furnace, Electric Arc Furnace
4. **Casting Inspection:** Direct Reading Spectrometer, Metallographic Analysis, Magnetic Particle Inspection, Ultrasonic Inspection, X-ray Inspection, Mechanical Properties Inspection
5. **Heat Treatment:** Aging Oven, Electric Furnace, Normalizing, Quenching & Tempering Equipment
6. **Surface Treatment:** Shot Blast Cleaning, Polishing, Chrome Plating, Zinc Plating, Powder Coating
7. **Machining Facilities:** CNC Centers, NC Lathes, NC Milling Machines, NC Boring Machines, Drilling Machines
8. **Inspection Facilities:** CNC 3D Inspection, Others
9. **Industrial Categories:** Tractor, Heavy-Duty Truck Industry, Car Industry, Farm Machinery, Construction Engineering Machine Industry, Power Industry, Elevator Industry, Valve Industry, General Machine Industry
10. **Part Weight Range:**
- Grey Iron: Up to 15,000kg
- Ductile Iron: Up to 4,000kg
- High Manganese Steel: Up to 5,000kg
- Carbon Steel & Alloy Steel: Up to 10,000kg
- Aluminum/Copper Alloy Die Casting: 8g to 12kg
- Investment/Lost Wax Casting: Up to 80kg
11. **Representative Products:** Machine Bed, Machine Table, Bearing Stand, Housing, Casing, Cover, Valve Body, Pump Body, Big Ring Gear, Big Pulley, Big Sheave, Bolster, Frame, Rear Frame, Front Frame, Engine Block, Mill-Ball, Hammer, Jaw Plate, Bucket Tooth, Front Idler, Excavator Sprocket, Link Rod, Bucket Link Rod, Barrel Liner, Grate Plate, Top Grate, Open Grate, Front Wall, Rack, etc.
### Product Table:
Item: Drain, Grating, Manhole Cover Material: Cast Gray Iron, Ductile Iron Shape: Round, Square, Rectangle, Triangle Process: Drawing-Mould Making-Raw Casting-Sand Blasting-Rough Machining-Surface Treatment-Product Inspection Size range: 200mm to 1200mm, Weight range: 7kg to 154kg Surface treatment: Spray Coated, Epoxy, Painted, Enamel Certificate: ISO9001:2000, SGS Class: A15, B125, C250, D400, E600, F900
Order No.
Inner dia
Grating
Outer dia
Height
Weight(kg)
Pressure(KN)
F0536-1
252 x 252
326 x 326
360 x 360
36
13.5
C250
F0536-2
350 x 350
400 x 400
470 x 470
40
20
C250
F0536-3
450 x 450
500 x 500
580 x 580
50
32
C250
F0536-4
550 x 550
600 x 600
680 x 680
50
39
C250
F0536-5
350 x 350
400 x 400
500 x 500
100
36.2
D400
F0536-6
450 x 450
500 x 500
600 x 600
100
49
D400
F0536-7
560 x 560
600 x 600
700 x 700
100
62
D400
Tensile strength
560MPa
Yield strength
340MPa
Elongation rate
7.5%
Hardness
210HBS
Material
GJS500-7 (GGG50)
Standard
EN 124
Manhole Covers/Chamber Cover for Sidewalk/Outdoor/Garden/Pedestrians
En125 A15 GG20 Manhole Covers & Manhole Cover for Sidewalk/Outdoor/Garden
### Order Table:
### Technical Data:
### Frequently Asked Questions:
**Q: Why choose Shengao products?**
A: We have our own factory – Weifang Shengao Machinery Co., Ltd. This ensures consistent quality and competitive pricing for every product we offer.
**Q: Do you provide OEM Service?**
A: Yes, we do. Custom branding is available upon request.
**Q: Do you provide customized products?**
A: Absolutely. If you provide us with drawings and specifications, we will manufacture according to your requirements.
**Q: What payment terms do you accept?**
A: We support various payment methods including L/C, T/T, PayPal, Escrow, and more.
If you have any questions or need further assistance, feel free to contact us. We also offer custom sizes and dimensions to meet your specific needs.