highway noise barriers

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highway noise barriers

Qizhenbi
<p>generally good endurance board, the surface can not see any basic Particles and bubbles. 3, the endurance board placed in the sun exposure, after a period of time, if the local plate yellow phenomenon, indicating the quality of the endurance board is not good. In addition, you can also pad a blank sheet under the endurance board, by contrast to observe the endurance board is yellow, if the yellow, then the quality is not </p>
<p>good. 4, select the smaller endurance board for combustion testing, good quality endurance board away from the source of fire, will go out on their own.The integration board is also called glued wood, and the wooden I-beam laminated veneer lumber is one of the three main engineering products. Beautiful appearance of the integrated board, compressive strength, affordable, used in home decoration is very extensive. </p>
<p>INTRODUCTION OF INTEGRATED BOARD This material has been translated into laminated materials in English and German. It is often confused with veneer laminated materials. For this purpose, the names of laminated or laminated laminated materials have also been used. Originally in Japanese, Glulam is a Japanese name in the form of Chinese characters, which includes materials glued together with adhesive and </p>
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