The karolo ea bohlokoa ka ho fetisisa ke ho boloka caster kettle phahameng elasticity hara fapaneng ya thatafala, 'me ba bang ba khabane ka ho fetisisa ho phetha molao feela matla, oli ho hanyetsa le ozone hanyetsa, ntle tlaase thepa mocheso.

Kettle caster tšoanang boholo mojaro bokgoni ba 6 ho ea ho 7 linako tse mabili le rabara e ka finyella e tsoelang pele ho etsa thepa thulaganyo le itsamaise, sephetho le tlhahiso le sebelisa litšila bo bonyenyane haholo, 'me botlhokwa go feta moo, litšila lebili setopo karolo ka recycled bakeng sa lihlahisoa tse ling kettle, ke ke a etsa tšilafalo ea tikoloho le thulaganyo lona difeme e bonolo-- mokelikeli foromeletsoeng ho bōpa, ho lahla lebili ke mofuta o mocha ho na khoele, e tsejoang e le ea lekholong la lilemo la bo21 la lilemo mabili tala, kettle mabili, e tla ba nakong e tlang ntshetsopeleng ya lebili ka sehloohong, indasteri ea lebili e na le litebello tsa kopo tse sephara.