Description: Spiral wound gasket is formed by the V-shaped or W-shaped stainless steel belt and non-metalic filer through lamination, spiral winding, and spot welding of the tops and ends, with good compression elasticity, it is applicable to the sealing parts under the intense alternating temperature and pressure, as the static sealing elements at the flange joints of pipelines, valves, pumps, heat exchanger, towers, manholes, handholes, etc. Its widely used in petrochemical, machinery, electric power metallurgy, shipbuilding, medicine, atomic energy, aerospace and other fields.