The premise is simple in that a sheet of material has the gasket[gasket?:gasket die cutting machine] shape "punched out" of it. This leads to a very crude, fast and cheap gasket. In previous times the material was compressed asbestos, but in modern times a fibrous material such as graphite is used. These gaskets can fill many chemical requirements based on the inertness of the material used and fit many budgetary restraints. Common practice prevents these gaskets from being used in many industrial processes based on temperature and pressure concerns.
CUTCNC[CUTCNC?:cutting machine sample maker manufacturer] offer sheet gaskets cutting plotter, it is the CNC cutting plotter, can cut many materials. Can cut the material according the design, cut the shape and contour. The max speed is 1000mm/s, also can be used for mass production.