Jinan Yonglong Environmental Protection Co., Ltd. is located in the beautiful environment of Shandong Jinan Zhangqiu, convenient transportation, is a research and development, production and sales in one of the environmental protection equipment company, the company produced Roots fan, rotary fan, pneumatic conveying equipment rotary feeder series products: excellent performance, excellent quality. The product model is complete and can meet the needs of different working conditions in all walks of life.