A ranar 7 ga Agusta. An yi bikin cika shekaru 16 na JUNRAY CO. a birnin Qingdao. Shekaru goma da suka gabata, shugaba He Chunlei ya kafa kamfanin Junray a kasar Sin.
Don gano zub da jini don Filter HEPA, sananne ne don amfani da photometer aerosol don gwaji. Injiniyoyi sun gwada ZR-6012 Aerosol Photometer dare da rana. Yau, za a fito da mashaya...