Ductile Iron Recessed DI Ring Round Cement Filled Monitoring Manhole Cover Rings

1. Material 
2.Ductile Iron GGG500-7 & 400-12 
3. Grey Iron GG20

Designs 
1. EN124 A15, B125, C250, D400, E600 and F900 
2. A60005 for casting design 
3. Major standards designs available 
4. As per customers' drawings or samples 

Process 
1.Molding boards 
2.Green sand with hand molding 

Coating 
1.Cold applied black bitumen 
2. Without coating
3. Coating as per customers' requirement 
4. Different accessories are available  

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1. Can I get free samples?
A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.

2. Can I request to change the form of packaging and transportation?
A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

3. Can I request to advance the shipment?
A: It should be depends on whether there is sufficient inventory in our warehouse.

4. Can I have my own Logo on the product?
A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

5. Can you produce the products according to my own drawings?
A: Yes, we can produce the products according to your drawings that will be most satisfy you.

6. What's your terms of payment?
A: T/T, L/C , Alibaba Trade Assurance available, full protection for your orders.

7.Do you accept custom design on size?
A: Yes, if the size is reasonable

8.Transportation
Transported by DHL, UPS, EMS, Fedex, SF, by Air, by Sea.