| Diameter | SOT(mtundu wokhazikika) | RPT(mtundu wachikoka) | Epoxy | BPANI | B-64 | CDL & ISE |
| 200 | ⚫ | ⚫ | ⚫ | |||
| 202 | ⚫ | ⚫ | ⚫ | ⚫ | ⚫ | ⚫ |
Kuti mudziwe zambiri, chonde siyani mafunso anu, tidzakulumikizani posachedwa momwe tingathere.