The corrugated composite gasket is a kind of metal composite gasket. Generally, the two sides of the metal flat pad are machined into concentric wavy grooves by precision lathe or special milling machine, and the upper and lower tooth tips are staggered, so that it has better compression resilience. Because the contact with other sealing surfaces is multiple concentric lines, it has labyrinth sealing function. According to different media and working conditions, flexible graphite, PTFE, asbestos-free board or other soft metals can be selected. Stick it on both sides of the gasket, and use the sealing performance of the soft covering layer and the good strength and elasticity of the metal to achieve better sealing effect. In most cases, we recommend using graphite as the sealing layer. When the medium reacts with graphite or requires a clean environment, we suggest using the newly introduced expanded tetrafluoroethylene with excellent performance as the bonding layer. Generally speaking, metal corrugated composite gasket can achieve sealing effect without great pressing force. \ x0d \ x0d \ corrugated composite gasket can also be used directly, and a good sealing effect can be achieved without bonding a sealing layer. Compared with tooth-shaped composite gasket, it has better compression resilience, especially in large-size flue gas pipeline, low pressure, high temperature or scraggy flange, and has more obvious sealing effect. \x0d\ Metal corrugated composite gasket made of special materials is suitable for special working conditions, such as extreme high temperature and strong corrosion. We can also produce some special materials as follows: \x0d\ stainless steel 304L, 32 1, 3 16TI, 309, 347, 4 10, dual-phase steel (2205, special stainless steel or alloy materials such as INCONEL(600, 625). \ x0d \ x0d \ graphite gasket is made of pure graphite plate or metal (toothed plate, flat plate, net) reinforced graphite plate by cutting or punching, and has many excellent sealing properties, such as thermal stability, self-lubrication, corrosion resistance, no aging and no brittleness. It can be used stably for a long time under harsh working conditions and rarely needs maintenance. The lining material can be made of different metal sheets. The type can be selected from no hem, inner hem, outer hem and inner and outer hem. Graphite cutting gasket is stamped or cut from pure graphite plate, which has good corrosion resistance, high and low temperature resistance, good compression resilience and high strength. Various circular and complex geometric gaskets are widely used in pipelines, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators and so on. \x0d\ graphite gasket is mainly used for various industrial pipeline flanges, heat exchangers, valve covers, etc. And the level gauge and the special-shaped flanges on the level gauge. \x0d\ Graphite gasket is formed by weaving graphite wires. Graphite gasket is suitable for sealing stuffing boxes of various valves, pumps, reactors and other equipment working in high temperature, high pressure and strong corrosive media.