The plywood is composed of layers of wood together with glue under high pressure. As physical properties of glue and wood layer are different, Expansion on Heating and Contraction on Cooling, the multi-layers will split after long time ,so the paint will be easy to fall off.
To make the border of plywood more smooth, it needs to coat with thick plasters, which can not withstand great impact, and after the paint off reveals white powder plasters.If the edge of multi-layers are not handled properly, they will prone to glitches, which may scratch the customer's wedding dress.
Our new seat plate’s edge is very smooth, and do not need to coat thick plasters, so the paint is easily attached, and can withstand collisions. |
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