Hefei Longzhiyuan Environmental Engineering Co., Ltd. was established on May 14, 2015, with a registered capital of RMB 1 million, legal representative: Wang Jun, main business: development of environmental protection technology and operation and maintenance of facilities; landscaping projects, cities And general contracting of road lighting engineering; installation and maintenance of municipal engineering; earthwork engineering; communication engineering; investment in municipal projects; cleaning services; urban road cleaning and cleaning; collection and transportation of urban garbage, construction garbage, industrial garbage, domestic garbage, and waste materials ; Sewage treatment; sludge treatment, collection, transportation.