Polyurethane sealing rings and hydraulic cylinder sealing rings made of polyurethane material possess characteristics such as wear resistance, corrosion resistance, tensile strength, ductility, high pressure load resistance, high compressive strength, shock absorption, tear resistance, radiation resistance, compressive strength, load-bearing capacity, and shock absorption and buffering. At the same time, they have a wide range of hardness, from Shore A10 to D75. They are widely used in metallurgical industry, mining, crude oil, vehicles, decorative building materials, heavy machinery and equipment, large and medium-sized stamping equipment, etc.
