Intshayelelo: Isetyenziswa kakhulu kumashishini ahlukeneyo kwihlabathi jikelele, iityhubhu zekhabhoni zefiber ziye zayiguqula ingqikelelo yamandla, ukuqina, kunye noyilo olukhaphukhaphu. Ngoxinaniso oluphantsi, olususela kuphela kwi-20% yentsimbi, iityhubhu zekhabhoni zefiber ibe yeyona nto ikhethwayo kwiinjineli, abayili, ...
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