Description
Plywood, Grade 3-4, is sheet plywood where the face layer is Grade 3 and the reverse side is of the lowest grade. Often, the back surface is unsanded. This plywood is sanded on both sides. But often the quality of the back layer doesn't make much of a difference. This type of plywood is also ideal for insulation and levelling of walls and floors, formwork, base construction, as well as for production of various types of boxes and packages.
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