Seal bushings, also known as gaskets, gaskets, are mechanical seals that fill the space between two or more mating surfaces, typically for liquids to leak from connected objects or into joined objects when compressed.
It will also be used to fix the product according to the different shapes and weak parts of the product to ensure that the product will not move during transportation, and has a buffering function as a packaging member. As a packaging member with cushioning function, the main function of the liner is to reduce or reduce the damage to the inner packaged items caused by external impact. Commonly used buffer materials are EPS, EPE, PE, PP, pulp molding, corrugated cardboard, foam in place, etc.