Ilaphu lokuntywila, elikwakwaziwa njengezinto zokuntywila, luhlobo logwebu lwerabha eyenziweyo, eethe-ethe, ethambileyo kunye nelastiki. Iimpawu kunye nobungakanani besicelo: ukumelana nemozulu elungileyo, ukumelana nokuguga kwe-ozone, ukuzicima, ukumelana ne-oyile elungileyo, okwesibini kuphela kwirabha ye-nitrile, i-tensile egqwesileyo...
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