Hydraulic systems can be seen everywhere in our daily lives. The excavators, bulldozers, tractors, trucks, etc all need hydraulic systems. In the hydraulic cylinder, the piston movement is achieved by interacting and reacting with the hydraulic oil. A hydraulic system often requires the use of multiple hydraulic seals to prevent the leak of hydraulic oil seal, prevent dust from entering, make sure the piston rod keep moving straight. Hydraulic sealing is a system, because different positions of the hydraulic cylinder require different sizes and structures hydraulic seals,like IDU Type Seal for rod , hydraulic Jack Hydraulic Seals and U Cup Seal. For example, WIPDER, GUIDE RING, OIL SEAL, BUFFERING, etc.
