• Model NO.：WF-JF
• Surface Treatment：Sand Blast
• Surface Roughness：Ra0.8
• Standard：ASTM
• Certification：CE, ISO 9001:2000, ISO 9001:2008
• Item：Polymer Covers Wholesale Resin Composite Covers Wa
• Brand Name：Shengao,OEM
• Size：200-1200mm
• Weight：30kgs
• Process：Sand Casting + Machining
• Raw Material：Ductile Iron, Cast Iron, Qt500
• Casting Tolerance：CT 7 ~ CT 8
• Surface Finish：Ra 12.5
• Dimensions：as Per Drawing
• Surface：Polishing, Anodising, Powder Coating
• OEM Service：Yes
• Custom Made：Yes
• Logo Printing：Customized
• MOQ：10-1000PCS
• Free Sample：Yes
• Transport Package：Iron Box, Plywood Box
• Specification：SGS, ISO9001: 2008
• Trademark：Shengao
• Origin：Weifang City. Shandong Province. China
• HS Code：87089910
• Production Capacity：5000000ton,Month

Basic Info.

Model NO. WF-JF Surface Treatment Sand Blast Surface Roughness Ra0.8 Standard ASTM Certification CE, ISO 9001:2000, ISO 9001:2008 Item Polymer Covers Wholesale Resin Composite Covers Wa Brand Name Shengao,OEM Size 200-1200mm Weight 30kgs Process Sand Casting + Machining Raw Material Ductile Iron, Cast Iron, Qt500 Casting Tolerance CT 7 ~ CT 8 Surface Finish Ra 12.5 Dimensions as Per Drawing Surface Polishing, Anodising, Powder Coating OEM Service Yes Custom Made Yes Logo Printing Customized MOQ 10-1000PCS Free Sample Yes Transport Package Iron Box, Plywood Box Specification SGS, ISO9001: 2008 Trademark Shengao Origin Weifang City. Shandong Province. China HS Code 87089910 Production Capacity 5000000ton/Month

Product Description

                                  Composite Manhole Covers/Watertight Manhole Covers for Garden Drainage




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.


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.



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.

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