Isixazululo se-Turnkey sokuvuselelwa kawoyela okusetshenzisiwe

Amafutha asetshenzisiwe, abizwa nangokuthi amafutha okufuhlafu, yimishini ehlukahlukene, izimoto, imikhumbi yokubuyisela uwoyela wokuthambisa, enqubweni yokungcola kwangaphandle ukukhiqiza inani elikhulu le-gum, oxide futhi ngaleyo ndlela alahlekelwe ukusebenza kahle. Izizathu eziphambili: Okokuqala, i-oyili esetshenziswayo ixutshwe nomswakama, uthuli, olunye uwoyela we-miscellaneous kanye ne-metal powder ekhiqizwa ngokugqokwa kwemishini, okuphumela ngombala omnyama nokuvuleka okukhulu. Okwesibili, uwoyela uwohloka ngokuhamba kwesikhathi, wakhe ama-organic acid, ama-colloid kanye ne-asphalt-efana nezinto ezinjenge-asphalt.