Hollow board: mainly used in various industries in electronics, packaging, machinery, light industry, food, household appliances, advertising, decoration, stationery, magneto-optical technology, is a new type of environmentally friendly packaging materials. Sheet (thickness 2-12mm, the maximum width of 2300 mm), turnover boxes, folding cartons, trays, etc. According to customer requirements made of anti-static, conductive and other sizes, styles different products.