QL metal fiber needle-punched felt is made up of 100% stainless steel fiber which is randomly entangled to form a complex 3D structure. Sometimes we add a stainless steel cloth in the middle of the felt to achieve greater mechanical resistance. With its spongy and soft characteristics, the felt can tolerate high temperature and prevent thermal shocks and micro cracks. It is an ideal covering material for glass industry. It can also be used as high-temperature flue gas dust collector due to its excellent heat insulation performance.