The width can be customized in the range of 500~2600mm, and the thickness is in the range of 0.025~0.3mm. The production process can be adjusted according to customer requirements, and the flame retardant grade effect can be customized. It meets the flame retardant grade standards at home and abroad. At the same time, its physical processing performance is excellent. It is suitable for various fields with flame retardant requirements of materials such as construction, automobile transportation, aviation, electrical appliances, etc.