1. Maererano nechishandiso, inogona kukamurwa kuita zvikamu zvitatu: dhizaini, chishandiso, uye kusununguka-kucheka chimiro chesimbi.
2. Maererano nenzira yekunyepedzera, inogona kukamurwa kuva matatu marudzi: yakavhurika moyo simbi, shandura simbi uye yemagetsi zvemagetsi simbi simbi
3. Zvinoenderana neiyo Deoxidation nzira, inogona kukamurwa kuita simbi yekubika, yakauraya simbi, yakauraya simbi yakaurayiwa uye simbi chaiyo yakaurayiwa.
4. Maererano neCarbon Zvemukati, inogona kukamurwa kuva matatu marudzi: yakaderera kabhoni, yepakati kabhoni uye yakakwirira kabhoni.