Compressed cardboard sheets or plates are a type of sealing material used in a variety of industrial applications. This material is known for its high strength and durability, as well as its ability to effectively seal a wide range of fluids.

Compressed cardboard is made up of cellulose fibers that have been subjected to a pressing and heating process to form a compact and resistant sheet. This process creates a material with a dense and uniform fibrous structure that allows it to withstand high temperatures and pressures without deforming or wearing.

In addition to their high strength and durability, compressed cardboard sheets are also easy to cut and shape, making them highly versatile and suitable for a wide variety of applications.

In summary, compressed cardboard sheets are a highly effective and durable sealing material used in a wide variety of industrial applications. Their ability to effectively seal a wide variety of fluids, their resistance to temperature and pressure, and their versatility make them ideal for use in a wide variety of demanding industrial applications.