5. Hollow board (hollow board turnover box), also called hollow Gezi board, Vantone board, corrugated board, double-siding, is a light weight (hollow structure), non-toxic, pollution-free, waterproof, shockproof, anti- aging, corrosion-resistant, rich new materials, product structure compared to cardboard, hollow plate with moisture, corrosion, and other advantages. Compared to injection products, hollow plate with shock, the flexibility to design the structure, without opening the injection mold, and other advantages. Meanwhile, the sheet can be controlled by means of a flexible material joined anti-static, conductive materials such as mother, to produce a conductive, anti-static function of the plastic hollow board sheet anti-static sheet surface resistivity can be controlled between 103 ~ 1011. Hollow board turnover me with bending, anti-aging, bearing strength, tensile, compression, tearing, high temperature, made of box-type container used for both working capital turnover can be used to ship finished product packaging, lightweight, durable, stack. Specifications can be customized according to user needs, size, aluminum edging, can be stamped, dust, elegant appearance. Mainly used in various industries in electronics, packaging, machinery, light industry, postal services, food, medicine, home appliances, stationery, magneto-optical technology, bio-engineering medicine and health.