Umbhobho wentsimbi ongenamthungo, njengoko negama lisitsho, ngumbhobho ongenamthungo okanye i-weld-joint. -ulwelo kunye neegesi (ulwelo), i-slurries, umgubo, umgubo kunye nenqwaba yezinto ezincinci eziqinileyo.Ukuveliswa kwemibhobho yethu yentsimbi engenamthungo ilawulwa ngokuqinileyo kwaye yonke imibhobho esiyivelisayo iye yavavanywa ngokupheleleyo kwimigangatho yamazwe ngamazwe ukuqinisekisa ukuba sibonelela kuphela ngeemveliso eziphezulu.