Je was op zoek naar: protuberances (Engels - Maltees)

no excessive protuberances
mingħajr protuberanzi eċċessivi

it may however, have protuberances, provided cleaning remains easy.
jista iżda, ikollu protuberanti, sakemm it-tindif jibqa' faċli.

more pronounced protuberances than allowed in class i, but without being misshapen,
protuberanzi iktar qawwija minn dawk permessi għall-klassi i, imma mingħajr ma’ jitilfu l-għamla tagħhom,

hence it must not be a rough surface; any protuberances it may exhibit must not prevent easy cleaning.
għalhekk, il-wiċċ irid ikun lixx; jekk ikun fih xi partijiet imqabbżin 'il barra, dawn ma għandhomx ikunu ta' xkiel għat-tindif.

a small 'hayward mark' like longitudinal lines, and without protuberance.
"marka hayward" żgħira bħal linji dritti, u mingħajr protuberanzi.