Kwanan nan, mun ɓullo da wani bi-directional wafer malam buɗe ido bawul ga Japan abokan ciniki, da matsakaici ne circulating ruwa mai sanyaya, zazzabi + 5 ℃.

Abokin ciniki ya fara amfani da bawul ɗin malam buɗe ido unidirectional, amma akwai wurare da yawa waɗanda ke buƙatar gaske suna buƙatar bawul ɗin malam buɗe ido biyu, don haka abokin cinikinmu ya nemi mu sake samar da bawul ɗin wafer malam buɗe ido a waɗannan wurare ba tare da canza fuska zuwa fuska ba.

Bayan tattaunawar sashen fasaha na THT, mun yanke shawarar yin amfani da ainihin ƙirar hatimi na unidirectional don aiwatar da bawul ɗin rufewar malam buɗe ido.A sakamakon haka, mun yi nasara, PN25 tabbataccen matsa lamba na baya 1: 1.