TD-AA cone type rubber with cone shaped rubber and frontal mount steel frame is the 3rd generation product of cell type rubber. Adopting cone rubber and full-new structure design of preposed steel structure, it is one of most excellent performance fender in that designed compress deformation rise from 52.5% to 70% if reaction force do not increase. Its emergence simplifies wharf structure and reduces the cost of quay wall construction, hence it is and ideal substitute of cell type rubber fender