Linyi is a big sheet of all, but also the packaging board production base. The production of packaging board wood there are big differences due to the water content of different quality. Here we take a look at. Moisture content of the wrapper is very important, the use of near equilibrium moisture content of the region, the better the moisture content, too high or too low, a relatively large deformation wrapper will appear under the influence of changes in ambient temperature. www. sdydwood. com moisture content than wood packaging material board more stable, outside temperature and humidity is relatively large in terms of time keeping, packaging board change in appearance is much smaller than wood materials. Packaging board will determine the quality of the water content of the packaging board packaging board if we are to even more detailed textures, color and clear, beautiful wood, indicating the quality is better.