免费人成在线看视频,XXX免费国产在线视频,无码av永久免费专区,中文字幕无码亚洲一本大道在线

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    At present, there are many kinds of products in China, but there are many problems such as poor adhesion, low temperature and anti cracking performance, resulting in the phenomenon of falling off and cracking. Especially in the north area, these phenomena are particularly serious. The research shows that the emergence of these problems is mainly due to the insufficient performance of the material in addition to the construction technology. Through repeated analogies of similar products at home and abroad, after a long period of investigation, our company has independently developed a self adhered pavement tape. The tapes are formed by forming the modified asphalt. The raw materials are more than 70# recross bitumen, imported modifier and other additives. The seam is not cracked in winter and does not flow in summer. At 15 degrees above the temperature, it can be completely embedded in the road surface after a period of running and rolling, and the pavement surface is restored.



    Immediate inquiry
    010-67893003
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  • 免费人成在线看视频,XXX免费国产在线视频,无码av永久免费专区,中文字幕无码亚洲一本大道在线

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