1. Inokuguquguquka okuhle kakhulu, i-bevelling radius incane; Izinga lokushisa elihle lokusebenza lokulwa nokungqongqoza kanye nengcindezi yokusebenza ububanzi bubanzi. 2. Inezindawo ezinhle kakhulu zamakhemikhali, ukulahlekelwa kwengcindezi kuncane; Izinga lobulukhuni liyavumelana, impilo yesevisi yinde. 3. Ayinabuthi, ayinambitheki. 4. Umbala owenziwe ngokwezifiso uyenzeka, ukubonwa kalula kwepayipi. 5. Ukuhambisana nemfuneko ye-RoHS yokuvikela imvelo.