zhangxiaosan
Dołączył: 15 Kwi 2016 Posty: 4143
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Wysłany: Pią Wrz 15, 2017 03:09 Temat postu: expansion and contraction of the object |
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<p>is more important, generally in the positive and negative 0.5 mm below. 3, the board to be smooth, the surface can not appear scratches or other damage, to ensure smooth and comfortable, no gaps. 4, wood in addition to the inherent characteristics of the thermal expansion and contraction of the object, but also its wet and dry shrink characteristics. Identify the wooden floor is dried by the method is: hand touch or measured with a wet meter. 5, with some tailings, </p>
<p>off the board and different lengths of solid wood flooring plate through the splicing process stitching and act as a solid wood flooring sales to deceive consumers. Such a floor due to the use of a large number of adhesive stitching, high formaldehyde content is not environmentally friendly, and due to uneven stress on the floor easily lead to deformation, cracking. Identification method: longitudinal sawing or grinding visible finger trace. 6, take the log sapwood and core </p>
<p>material transfer part of the solid wood substrate, the floor surface through the use of color or special color modification treatment to eliminate the sapwood and core material between the color to serve as high-quality solid wood flooring sales deceive consumers. As the sapwood and core material of the air dry density, moisture content, wood hardness is not the same, easy to cause the floor from the arch, deformation, cracking and other series of quality </p>
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