Baenjineri ba khoebo ea tekheniki ba tla qala ho buisana le k'hamphani ea hau, ebe ba etsa litlhahiso tse nepahetseng tsa brashi ea carbon ho latela litlhoko tsa sehlahisoa.
- - bohlale ba 'maraka
- - Mehlala ea bareki, litšoantšo
- - Tafole ea tšebeliso ea borashe ba carbon