• Kulamulidwa ndi zapamwamba PLC, n'zosavuta ntchito. Ndipo imathanso kuyendetsedwa ndi pedal. Mapangidwe apadera apakompyuta (patent) ali ndi ntchito yotambasula manja. Nditha kukumana ndi kusita malaya, masuti ndi zovala zina.
• Ili ndi mphamvu ya mphepo, m'lifupi mwa mapewa, kuzungulira kwa chiuno, chiuno cha mchiuno, hem ndi njira yosinthira kutalika kwa placket. Zovala zazing'ono, monga zovala za amayi, zimatha kusita pamakina.
• Wokhala ndi zida zothandizidwa ndi matabwa olimba, kusita kwa nsalu zamakono kungafanane ndi fakitale ya akatswiri opanga zovala, ndipo sikudzapunduka pakagwiritsidwa ntchito nthawi yayitali.
• Patented nthunzi dera kapangidwe kuonetsetsa nthunzi kupopera mbewu mankhwalawa khalidwe.
