manhole cover

1) Product information
Manhole Covers are manufactured for construction and public use. Manhole Covers shall be smooth and free from sand holes, blow holes, distortion or any other defects 
2) Material 
Ductile Iron GGG500-7 & 400-12 or Grey Iron GG20
3) Process 
c) Molding boards 
d) Green sand with hand molding 
4) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirement 
5) Different accessories are available