Icala lokucheba lenziwe ngezinto zeprimiyamu, ulwakhiwo olomeleleyo lwe-aluminiyam kunye neekona zentsimbi ezomeleziweyo zokomelela okongezelelekileyo. Uyilo lobuchwephesha bokuthwala, ukubonisa, kunye nokuhamba.
Siyifektri eneminyaka eyi-15 yamava, ngokukodwa kwimveliso yeemveliso ezenziwe ngokwezifiso ezifana neengxowa zokuzilungisa, iimeko zokuzilungisa, iimeko ze-aluminium, iimeko zendiza, njl.