| Round type Composite manhole cover | |
| Size | Material |
| Ø300×30 | composite resin |
| Ø400×40 | composite resin |
| Ø500×30,Ø500×40,Ø500×50 | composite resin |
| Ø600×30,Ø600×40,Ø600×50, | composite resin |
| Ø700×30,Ø700×40,Ø700×50,Ø700×70 | composite resin |
| Ø800×50,Ø800×70 | composite resin |
| Etc… | |
| Customized size,customized logo | acceptable |
| Square type Composite manhole cover | |
| Size(interior frame/external frame) | Material |
| 300x300x30 | composite resin |
| 400x400x30,400x400x40 | composite resin |
| 500x500x50, | composite resin |
| 600x600x30,600x600x40,600x600x50 | composite resin |
| 700x700x40,700x700x50 | composite resin |
| 800x800x40,800x800x50 | composite resin |
| Etc… | |
| Customized size,customized logo | acceptable |
| Composite trench cover | |
| Size | Material |
| 200x500x20 | composite resin |
| 250x500x20 | composite resin |
| 350x500x20,350x500x30 | composite resin |
| 400x500x30,400x600x30 | composite resin |
| 500x500x30,500x500x40 | composite resin |
| 450x750x40,450x750x50 | composite resin |
| Etc… | |
| Customized size,customized logo | acceptable |
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