Nanjing Tongchang Environment Tech Co., Ltd yashinzwe mu 2018, iherereye i Nanjing, Intara ya JiangSu, iri mu ruzinduko rw’ubukungu rwa Shanghai.Igikorwa cyacu nyamukuru nugukora no kugurisha ibikoresho byogeza ikirere namazi nibikoresho byabo bifasha.