The CS series Screw Pumps that the company produced and its derivative products of the Chenshi Screw Pumps are of the highest compression resistance, maximum displacement, most complete in types, the largest pump capacity, and the longest useful time and have the widest range of usage. The good performance in saving energy in China. It is mainly used in transportation of one or more mixed liquids, including the neutral type or the corrosive one, types containing air of easy to create air bubbles, of high viscosity or non-liquid, and types containing rigid granules. The Chenshi Screw Pumps has solved the difficult problems of transportation of high-temperature, high pressure, strong solvent, ect. It has the features of low power consumption and low running cost, and it is convenient to maintain and the screw and some other key parts of the machine have useful time 3~4 times as other types. All of the adjustable structure type, the dual adjustable structure type and the rigid bush pumps with single screw are our patents. We designed and manufactured Single Screw Pumps of the largest pump capacity, and the highest compression resistance in Asia, and they have been successfully used in Zhongyuan oil-field, Liaohe oil-field etc. It's the pioneer work in China. The world is watching the company!