Umgangatho wokuthwala kunye nokukhethwa kwezinto eziphathekayo azinakuhlukana ngexesha lokusetyenziswa kokuthwala.Ngoko ke, kufuneka sikhethe izinto ezithile zokuthwala ngokweemfuno ezithile zomthengi.Ngoko ke zeziphi iimpawu zentsimbi yokuthwala?Ngokusekelwe ekuqondeni, iimpawu zokusebenza ezilandelayo zokuthwala izinto zetsimbi zidweliswe.

Ukuthwala intsimbi kufuneka ibe nezi zinto zilandelayo:

1. Amandla okudinwa koqhagamshelwano oluphezulu.

2. Ukuxhatshazwa okuphezulu kwe-abrasion.

3. Umda ophezulu we-elastic kunye namandla okuvelisa.

4. Ubunzima obuphezulu kunye obufanayo.

5, ukuqina kwempembelelo ethile.

6. Uzinzo oluhle lwe-dimensional.

I-7, ukusebenza kakuhle kwe-corrosion inhibition.

8. Ukusebenza kakuhle kwenkqubo.

Ukukhethwa kwezinto ezithwala intsimbi kufuna kwakhona ukuthenga okuthe ngqo.Ukuthwala izinto ezisebenza phantsi kweemeko ezikhethekileyo, ngokweemfuno zabo ezithile, kufuneka kwakhona zibe neempawu ezikhethekileyo ezihambelana neemeko zabo, ezinje: ukumelana nobushushu obuphezulu, ukumelana nobushushu obuphantsi, ukumelana nokugqwala, Anti-radiation, anti-magnetic and ezinye iimpawu.