Zhangqiu Fengyuan Machinery Co., Ltd.,located in Shangdong,China, is backbone enterprise of Economic Development Zone of Zhangqiu.Our company is major in the production and sales of FSR roots blower,FRR roots blower and L-type series of roots blower,for four major series, more than 70 kinds of products.We adopt CNC machine center precision to manufacture all of our products . They are widely used in environmental protection, mining, metallurgy, chemical industry, light industry, building materials, electricity, flour, aquaculture and other fields.The company occupies an area of 35000m2,and...