... performance; 2.Clear contact surface and easy to replacing Spiral wound gasket : Spiral wound gasket (basic type) is made by superposing, winding and ... equipments.Equipment: It is used as static sealing material for pipeline, valve, pump, pressure vessel, condenser, tower, ... medicine, atomic energy, space navigation and so on.Medium: It is suitable for high-temperature, high-pressure steam, oil, gas, ...