usually length of 600mm, 750mm, 900mm, width of 90mm, 120mm, thickness 18mm solid wood flooring, all belong to the national standard specifications; The length, width, thickness less than the national standard, known as non-standard board. The reason why the market will appear.on the target board and non-standard board, material suppliers are provided by the blank board to determine the quality and specifications of rough board GB, manufacturers can produce a tender. "As with the target board, as long as the quality meets the national standard,
the non-standard board is also allowed to go on the market." Zhao Ball explained. However, in the interview, the reporter found a strange phenomenon: those ridiculously low prices of "solid wood flooring" are almost all narrow or short board, that is, the size specifications are not in the national.
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