Tianjin Tongjie High Pressure Pump Manufacturing Co.,Ltd ,was founded in 1990, located in Xiqing Economic Development Zone Of Tianjin ,with a land of 5,000 square meters and employees more than 400 ,it owns two production bases and a rental fleet of high pressure water cleaning equipments ,There are more than a hundred precise machining equipments including various CNC, grinding machines, and nearly 20pcs rental pump units. the annual sales amount is about 80,000,000 RMB. it is authorized to be National Research Center, and get the ISO9001:2000 Certificate and safely certificate of approval for coal mining products.it is considered as one of the leading suppliers of Chinese waterjetting industry .