??O rubber ring seal o-rings for short, is a kind of cross section shape of circular rubber ring. Type O sealing ring is the most widely used in hydraulic and pneumatic system of a seal. Type O ring has good sealing performance, can be used for static seal, also can be used in dynamic seal; Not only can be used alone, and it is an essential part of many combined sealing device. Its use range is very wide, if material choice is proper, can meet the requirements of all kinds of medium and the conditions of various kinds of sports.

??Type O sealing ring is a JiYaXing seal, JiYaXing sealing pieces is the basic working principle of relying on elastic deformation occurs, in the sealing contact surface contact pressure and contact pressure is greater than the inner pressure of seal medium, do not leak, leakage conversely.

??O-rings or is one of the rod supporting products, used to set at the top of the rod at the bottom of the put, prevent fish bait instantly pull rod into the water, materials are mainly composed of rubber.