★Isivumelwano serola yokufudumeza kwangaphambili kunye nomgangatho wesizwe wesitya soxinzelelo, kwaye sivakele isiqinisekiso sesikhongozeli soxinzelelo kunye nesiqinisekiso sokuhlolwa.
★Umgangatho ngamnye we-roller emva kokusila ngokuchanekileyo kunye nokujongana ne-chrome plating eqinile, ukukhuhlana komphezulu kuncinci, kuyahlala ixesha elide.