Kodi mungaboole bwanji bowo lozungulira pa mbale ya MS & SS? Tili ndi masitepe atatu, timasankha mabatani atatu obowolera mbale, omwe amatha kukhala makulidwe a 20mm. Mwachitsanzo, tikaboola mbale imodzi yokhala ndi makulidwe a 20mm, choyamba timagwiritsa ntchito pobowola kukula kwapakatikati pobowola kuya kwa 18mm, kenako gwiritsani pang'ono pobowola mbale yomaliza ya 2mm, pamapeto pake gwiritsani ntchito pobowola kukula kwakukulu kuti dzenje lalikulu likhale lalikulu mpaka kuya kwa 10mm. Kumene makulidwe mbale zachokera lamulo makasitomala, timagwiritsa ntchito kunja pobowola pang'ono, amene Tingaone mu msika china kawirikawiri, ndicho chifukwa chake ife tikhoza kupanga dzenje conical makasitomala athu.