Nkọwa ngwaahịa:
* Uru nke brọsh ihicha nke ZRH med na ilele:
* Otu ojiji na-ekwe nkwa kacha ihicha mmetụta
* Ndụmọdụ bristle dị nro na-egbochi mmebi ọwa ọrụ wdg.
* Ọkụ na-adọkpụ na-agbanwe agbanwe na ọnọdụ pụrụ iche nke bristles na-enye ohere mmegharị dị mfe, nke ọma n'ihu na azụ
* A na-ekwe nkwa ijide n'aka na nrachi nke brushes site na ịgbado ọkụ na tube ịdọrọ - enweghị njikọ.
* Sheathing welded na-egbochi ntinye nke mmiri n'ime tube na-adọta
* Ijikwa dị mfe
* Enweghị latex