Kuphatikiza magwiridwe antchito ndi kutsogola, choperekachi chimakopa okonda zolimbitsa thupi amitundu yonse. Ma racks odziyimira pawokha amapezeka kuti ophunzitsa asankhe, kupangitsa kusuntha kwachilengedwe kukhala kwachilengedwe komanso kosalala. Machubu okwera mbali zonse amatsimikizira kukhazikika kwa thupi ndi kuthandizira, pomwe zopachika zolemetsa zaulere zili mbali inayo. Kuphatikiza pakupereka kukongola kwapadera komwe kumakopa ogwiritsa ntchito, kapangidwe kathu kachubu kozungulira kapentidwa ndi ma electrostatic-coat three-coat finishes omwe amapereka mphamvu zokhalitsa komanso kulimba.