Posachedwapa, tapanga valavu ya gulugufe ya wafer yozungulira mbali zonse ziwiri kwa makasitomala aku Japan, ndipo njira yolumikizira madzi ozizira imazungulira, kutentha + 5℃.

Poyamba kasitomala ankagwiritsa ntchito valavu ya gulugufe yolunjika mbali imodzi, koma pali malo angapo omwe amafunika valavu ya gulugufe yolunjika mbali zonse ziwiri, kotero kasitomala wathu anatipempha kuti tiperekenso valavu ya gulugufe yolunjika mbali zonse ziwiri popanda kusintha kukula kwa nkhope ndi nkhope.

Pambuyo pokambirana za dipatimenti yaukadaulo ya THT, tinaganiza zogwiritsa ntchito chikombole choyambirira chotsekera mbali imodzi kuti tigwiritse ntchito valavu ya gulugufe yotsekera mbali ziwiri. Zotsatira zake, tinakwanitsa, kupanikizika kwa PN25 kumbuyo kwa 1:1.