Kunshan Grand board / Kunshan Grand crate hollow plate (also called hollow Gezi board, Vantone board, corrugated board, double wall) English name: pp plate sheet, is a light weight (hollow structure), no toxic, pollution-free, waterproof, shockproof, anti-aging, corrosion-resistant, color-rich new material, the hollow structure of the product compared to cardboard plates, hollow plate with moisture, corrosion resistance and other advantages. Compared to injection products, hollow plate with shock, flexible design structure, without open injection mold and other advantages. Meanwhile, the sheet material can be controlled by adding a flexible anti-static, conductive materials such as mother, to produce a conductive, anti-static function of plastic hollow board sheet, anti-static sheet surface resistivity can be controlled between 106 ~ 1011. Static conductive plate surface resistivity can be controlled between 103 ~ 105