Li-Fasteners tsa AYA li na le mefuta e mengata e fapaneng ea li-fasteners tse thibelang kutu ka boholo le li-grad tse fapaneng, tse loketseng tikoloho ea hydro-indasteri.

Li-fasteners li phetha karolo ea bohlokoa mererong ea ho boloka metsi 'me li sebelisetsoa ho hokahanya le ho lokisa lisebelisoa tse fapaneng tsa ho boloka metsi le likaroloana ho netefatsa botsitso le polokeho ea morero.