Shandong Zhongju Electric Appliance Co., Ltd. (formerly Shandong Boshi Machinery Co., Ltd.) is a high-tech enterprise focusing on the R & D, design, production, promotion and sales of agricultural and forestry machinery, water purification machinery, cleaning machinery, micro motor, water pump and accessories. Founded in October 2014, the company has a sound product research and development technology center and an advanced product experiment center in the industry. It is a national high-tech enterprise in 2020, Linyi enterprise technology center, Linyi electric diaphragm pump engineering laboratory, Linyi electric diaphragm pump industrial design center, with more than 37 kinds of independent intellectual property patents and 2 authorized invention patents, It has accepted 2 projects. It is the director unit of China Agricultural Mechanization Association and Shandong Agricultural Machinery Association. It has established cooperative relations with China Agricultural University, Jiangsu University and other domestic well-known universities. It has won the honorary titles of "top 100 water purification enterprises in China" and "top 10 water purification suppliers in China in 2017" and passed the iso9001-2016 quality management system certification.