Gold Member Since 2016
Audited Supplier
Zibo Best Energy-Saving Materials Co., Ltd.

Round Manhole Cover, Composite Manhole Cover, Manhole Cover with Frame manufacturer / supplier in China, offering Square Vented Manhole Cover, B125 En124 SMC Composite Round Manhole Cover, Round 700 FRP/GRP Composite Manhole Cover and so on.

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Square Vented Manhole Cover

Purchase Qty.:
1-99 100+
FOB Unit Price: US $50 US $10
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $50
100+ US $10
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Port: Qingdao, China
Production Capacity: 3000/Year
Payment Terms: L/C, T/T

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Product Catalog
SMC square manhole cover
20 Products
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Basic Info
  • Model NO.: SS600B
  • Shape: Square
  • Frame Size: 710X710mm
  • Frame Height: 50mm
  • Clear Opening: 550X550mm
  • Application: Road
  • Metal Type: SMC
  • Light Color: Can Be Customized
  • Trademark: no
  • Specification: 600x600x30
  • HS Code: 3926909090
  • Material: SMC
  • Cover Size: 600X600mm
  • Cover Height: 30mm
  • Weight: 25.1kg
  • Type: Manhole Cover
  • Sign Type: Notice Sign
  • Solar Cell Type: Other
  • Frame Finishing: Other
  • Transport Package: Wooden Pallet
  • Origin: Zibo, Shandong
Product Description
Production description

1.Logo and color can be customized & new type handing hole

Square Vented Manhole Cover

2. Screw lock
The manhole cover is lockable and the screw lock is stainless steel.

Square Vented Manhole Cover

3. Handing hole

Square Vented Manhole Cover

4.  waterproof gasket

Square Vented Manhole Cover



Stringent specification

The production is strictly under GB/T23858-2009 and EN124 Standard.


Light weight and convenient

The weight is 1/3 lighter than cast iron ones so that it is convenient to transport, install, rush repair; construct easily and reduce working intensity.

High Strength

The materials of  the SMC products is Sheet Molding Compound without steel bar. SMC is high strength material. SMC products can bear 900KN.

Nice appearance

 Beautiful appearance and rich colors; the cover is not sprayed in surface but painted in whole material so that the color can keep lasted.


Non-recycle material, anti-theft naturally; the lock attachment can prevent tunnel products from losing, therefore city blackhole can be stopped totally.

Weather resistance

The material is stable and the production of the products is scientifically so that the products can bear -50ºC-+150ºC.

Low noise

As the products are molding pressed under high temperature, the gap between the frame and the cover is small. Moreover, we put adhesive tape between the frame and the cover. So when cars roll over the manhole covers, the noise is low.


Our company has passed the examine of the National Research & Analysis Center of Chemical. The products are anti-corrosion, acid and alkali resistanced.

Good after-sales service

We carry on the warranty policy under the Non-artificial damage and proper policy    



1. wooden pallet

2. according to customers' reqirement

Square Vented Manhole Cover


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