OEM Ductile/Grey Iron Sand Casting Cast Iron Drain Manhole Cover for Sewer Drainage Cover

Manhole Cover 
Cast iron manhole cover 
We can produce all kind of manhole cover with customers' drawing or sampe. 
OEM ans ODM are welcomed. 
OEM Manhole Ductile Iron Sand Casting for Manhole Cover
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
OEM Manhole Ductile Iron Sand Casting for Manhole Cover