1) Solid Cover Series
* Ductile Iron
* Two Lifting Keyholes
* Cut-Corner Design (Regular corner covers are also available)
* Diamond raised top design
2) Double Sealed Series
* Ductile Iron
* Double Sealed
* 2 Lifting Key Holes
* Cut-Corner Design (Regular corner covers are also available)
Some types come with GRP sealing plate.
3) Double Triangular Series 
* Ductile Iron
* Double Triangular
* Square Plate raised top design
* Special inscription or different identification is available
4) Round Cover Series
* Ductile Iron
* Special inscription or different identification is available
Round frames, Square frames and Octagonal frames are available.
Some types come with GRP sealing plate.
Most of the standard sizes are available.
Ask SYI Sales Representatives for more details at info@syifoundry.com