Sida mid ka mid ah balaastigga injineernimada, alaabada naylon "ku beddelka birta balaastikada, oo leh waxqabad aad u fiican", ayaa si ballaaran loo isticmaalaa.Sababtoo ah miisaankeeda fudud, xoog badan, is-saliimayn, adkaysi u leh, ka hortagga daxalka, dahaarka iyo waxyaabo kale oo badan oo gaar ah, waa e ...
Akhri wax dheeraad ah