1,Simbi nemagetsi ekugadzira oxidation,dhizaini chaiyo.
2,Inoshandisa spika yesimbi yemhangura, yemhando yepamusoro.
3,Dhizaini yeganda remukati menzeve,yakapfava uye yakasununguka.
4, Tamba/mira, chinja nziyo, kugadzirisa vhoriyamu, zviri nyore kushandisa
5,Inoshandisa tambo yeTPE,yakapfava uye inoyevedza.