Pgs "S" valve series high pressure pump, "Z" plate valve series medium pressure pump, "D" dish valve series low pressure pump have been widely used in construction project such as the city construction, bridge, electricity and power field. This equipment takes advanced technology such as open hydraulic circuit, high quality distribution valve, constant output control, hydraulic reverse automatically, electric proportional control. We have a deep research in the field such as concrete piston self-lubrication and get many patents. Pgs tug concrete pump is the first level in the international with latest technology. It has 3 series, more than 20 kinds of products and can satisfy the need of different users. With the stream line operation, strict control each process and assembly quality, overload test, each pump can achieve zero default in the first operation.