Supply billboards manufacturers | outdoor piece billboards | Aluminium open billboards customized Product Name: Outdoor billboards Siamese Product Specifications: Brand: Jun Tao Material: aluminum extrusions, aluminum panels back, aluminum columns, solar panels Technology: aluminum sawing, splice installation. Manufacturer: Road Advertising Equipment Co., Ltd. Zhengzhou Jun outdoor billboards piece Accessories: 1, the main profiles: aluminum light sandblasting, high-grade durable display green 2, panel: 4mm thick polycarbonate panels 3, ceiling plate: 1mm thick aluminum or 8mm thick Sunshine plate; 4, back: 1mm thick galvanized steel or magnetic 3mm thick aluminum plate; 5, hydraulic rod 6 feet connecting plate: 8mm thick galvanized steel sheet 7, metal connector