Reducing rubber joints, also known as reducer dampers, pipeline dampers, suspension hoses, soft joints, flexible joints, high pressure joints. Reducing rubber joints, reducer rubber size heads, reducer rubber size heads, concentric reducer rubber joints are collectively referred to as different diameter rubber joints. Reducing rubber joints are mainly used in pipes with different pipe diameters or with variable diameter connections, and the maximum withstand pressure is 1.6 MPa. The different diameter rubber joint has good elasticity, large displacement, low resonance resonance of the pipeline unit, convenient installation, compensation of pipeline displacement, and good compensation for the blank of large-scale different-diameter pipeline connection in the industry.