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Question:

Big core board according to the merits of the material and the texture of the surface material points

Big core board according to the merits of the material and the texture of the surface material points

Answer:

but this is only business behavior, and national standards do not match, the market has not allowed such a label.
first-class goods and "qualified products." There are enterprises will grade plate grade A, double A and three A level,
Different materials, different quality, Daxin board according to the merits of the material and the texture of the surface material is divided into "excellent goods"

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