Grade II High Alumina Njerwa
- Refractory yopangidwa ndi mawonekedwe
- Njerwa za Magnesia Carbon
- Njerwa Zapamwamba za Aluminium
- Njerwa Zapamwamba za Alumina zamakampani azitsulo
- Njerwa za Low Creep High Alumina
- Njerwa za SK36-SK40 High Alumina
- Njerwa zazitali za alumina za ng'anjo zomira pansi pa madzi
- Njerwa zapamwamba za aluminiyamu zooneka mwapadera
- Grade III High Alumina Njerwa
- Grade II High Alumina Njerwa
- Grade I High Alumina Njerwa
- Njerwa Zadongo
- Njerwa za silika
- Njerwa za Silicon Mullite
- Si3N4-SiC Njerwa
- Kuwala zotchinjiriza njerwa
- Ceramic Fiber
- Monolithic Refractory
