Aɣurar d tumant tanezwayt anda yettili uɣelluy n ugeffur drus s waṭas aladɣa deg idgan dgi tekkat tkewt neɣ anda yettili unezwu aneẓraf. Asismel Idgan iɣuraren ttusismlen ar 3 n tseddaṛin: D aɣurar s waṭas: Gar n 10 ar 15 mm deg useggasAɣurar: gar 100 ar 150 mm deg useggasAzunɣurar: tezmer ad tiweṭ ar 400