bnb998成人免费_欧美videosdesexo吹潮_成人羞羞无遮挡免费网站_久久人妻无码AⅤ毛片A片麻豆_久久精品久久久久_av久色

HOME
新聞動態

HOdo’s tire brand wins technology innovation award

Published in:

Jiangsu General Science Technology Co won the Technology Innovation Award at the seventh Summit Forum for China Eucommia Industry Development in Hunan, Nov 28. It’s the only tire brand in domestic to win the award.

The modern species of Eucommia is known as the "hard rubber tree", while its latex is easy to crystallize at normal temperature and its amount in the bark is relatively small, about 4 percent by weight.

After years of unremitting efforts, Jiangsu General Science Technology Co applied Eucommia’s latex to tread rubber successfully, making abrasive resistance increase 30 to 40 percent. Vehicles with such tires are expected to run 300,000 kilometers.

主站蜘蛛池模板: 亚洲靠逼网站 | 成人高潮片免费软件69视频 | 误杀2国语版免费观看 | 国产欧美日产激情视频 | 999成人国产 | 国产做A爱片久久毛片A片秋霞 | 亚洲国产欧美国产综合一区 | 一级国产精品 | 蘑菇视频黄色 | 欧美做爰又粗又大免费看软件 | 国产成社区在线视频观看 | 美女黄网站18禁免费看 | 91传媒免费观看 | 看全色黄大色大片免费无码 | 国产下药迷晕一区二区三区在线看 | www.av视频在线观看 | 尤物AV无码国产在线观看 | 精品亚洲成a人片在线观看 国产老女人乱淫免费 | 国产小视频福利 | 精品产国自在拍 | 日韩视频在线一区 | 大陆一级黄色片 | 午夜二区 | 最新免费av网站 | 免费观看黄色一级大片 | 亚洲色啦啦狠狠网站 | 国产在线视频2019最新视频 | 欧洲精品99毛片免费高清观看 | 两个人看的www在线观看视频 | 97久久精品午夜一区二区 | 男人扒开女人腿桶到爽免费av | 视频在线观看国产 | 女人把腿张开让男人来桶 | 日本高清生活片 | 成人宗合 | 成年人黄色在线观看 | 国产高清www午色夜 亚洲精品成人网久久久久久 | 国产免费不卡av | 国产亚洲色婷婷久久99精品 | 亚洲成人色图网 | 国产精品美脚玉足脚交 |