
Chungrong ke khoebo le k'hamphani e kopaneng tse kopaneng tsa khoebo, tse nang le masholu a polasetiki, le lisebelisoa tsa pp, tse rekisoang.
Ho na le mela e mengata ea li-pipe tse fetang 100 .200 ka lisebelisoa tsa tlhahiso e loketseng. Matla a tlhahiso a fihla lithatleng tse fetang likete tse 100. Ka holim'a litsamaiso tsa metsi, khase, li fokotseha, ho nosetsa letla, ho nosetsa letoto, le lihlooho tse fetang 20 tse fetang 7000.
Lihlahisoa li tsamaisana le Iso4427 / 44337, Astmd30, En12201 / 1555, As / 1533