Rubber joints are also called rubber hose flexible joints, flexible rubber joints, rubber flexible joints, bendable rubber joints, high pressure rubber joints, rubber shock absorbers, compensators and so on. According to the connection method, there are 3 types of rubber joints: loose flange type, fixed flange type and threaded type; according to the structure, there are 5 types: single sphere, double sphere, reducer, curved sphere and wind pressure coil. It is composed of inner and outer rubber, cord fabric layer and steel wire ring, which is vulcanized and then loosely combined with metal flange or parallel joint. this product can reduce vibration and noise, and can play a role in compensation for thermal expansion and contraction caused by temperature changes, and is widely used in various piping systems.