Kuyambira pa Epulo 20 mpaka 21, 2021, chiwonetsero choyamba cha Fujian Provincial Environmental Sanitation and Clean Technology Equipment Exhibition chidzachitika pa Longyan. Akuluakulu a boma, akatswiri, akatswiri ndi oimira makampani adasonkhana pamodzi kuti akambirane nkhani zomwe zikuchitika panopa zamakampani a zachilengedwe. Pachiwonetserochi, ukadaulo wa jiarong udapereka zida zoyendetsa ndege, ukadaulo wamankhwala otengera malo osinthira, ukadaulo wamankhwala wa ZLD wotayirapo.
