Fa'idodin gyare-gyaren gyare-gyare mai Layer Layer guda ɗaya akan sassa masu hatimi
1, Za a iya samar da mafi daidai m curvature
2 cavity.
4, Babu buƙatar molds, mafi sassauƙa amsa ga ƙira canje-canje, sauri da kuma tattalin arziki samar da kananan batches na musamman umarni
5, Babu sharar gida