Also they are designed to match harsh environment, they can resist extreme high or low temperature, invasion of sand & dust and corrosion of seawater.
Futhi zenzelwe ukufanisa imvelo enokhahlo, zingamelana nokushisa okuphezulu kakhulu noma okuphansi, ukuhlasela kwesihlabathi nothuli nokugqwala kwamanzi olwandle.