1. Material: PE.
2. Dimensions: D520*W400*H300mm±10mm, the thickness of the back door of the schoolbag is 44mm±5mm, and the cabinet door is a double-layer structure. Blow air inside the hollow membrane. Resistance to high-strength impact without deformation The cabinet body is made of one-piece molding. The top of the cabinet is raised by 10mm±3mm, and the bottom is recessed by 10mm±3mm. The thickness of the cabinet body is 5-8mm. There are 4 grooved reinforcing ribs on the side and two widths of 10mm. The two reliefs are 20mm, and the thickness of the cabinet frame is 30mm±5mm. The reinforced structure is stable and not easy to deform during use.
2. Dimensions: D520*W400*H300mm±10mm, the thickness of the back door of the schoolbag is 44mm±5mm, and the cabinet door is a double-layer structure. Blow air inside the hollow membrane. Resistance to high-strength impact without deformation The cabinet body is made of one-piece molding. The top of the cabinet is raised by 10mm±3mm, and the bottom is recessed by 10mm±3mm. The thickness of the cabinet body is 5-8mm. There are 4 grooved reinforcing ribs on the side and two widths of 10mm. The two reliefs are 20mm, and the thickness of the cabinet frame is 30mm±5mm. The reinforced structure is stable and not easy to deform during use.