Jingge aluminum materials have steel seal marks. According to relevant standards, general aluminum alloy materials should be marked to meet the requirements of the standards. As a relatively well-known brand of aluminum alloy materials, Jingge Aluminum's products should also have logos. Generally speaking, brand owners will mark relevant information on obvious parts or labels of products to ensure the legality and traceability of the products. Therefore, Jingge Aluminum products should also have corresponding logos or labels.