Some consumers blindly pursue no defects and require the same and no defects, this is actually very difficult to do, and the cost is too high.On the contrary, the color difference between the wood floor and the living section, there is also a real, return to the natural feeling. Look at the grade of solid wood floor.The solid wood floor is divided into three grades: AA grade, A grade and B grade.The quality of AA is the highest and the color difference is the least.When the solid wood floor is tested, the quality defects such as Si Jie, bug eye, oil eye and tree heart can not be seen.
The diameter of the live is less than 1/3, and the length of the crack is not more than 1/5 of the thickness and length of the crack.The slope of twill is less than 10%, no corrosion point, the graphic texture is straight, color should be uniform.2. To detect the quality of the processing.
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