Mai jujjuyawa nau'in V nau'in mara amfani ana amfani dashi galibi don gyara canjin kusurwar bel ɗin dawowa don tsarin jigilar bel. Ana amfani da shi musamman don danne bel da kuma hana bel daga tashi da tabo sassan tsarin. Mai jigilar jigilar mu yana jujjuya sassauƙa kuma yana da ƙarancin juriya. Dukan ƙarshen madaidaicin sun ƙunshi sifofin hatimin labyrinth da rufaffiyar hatimi mai fuska biyu don samar da shingen hana ƙura biyu da hana ruwa.
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