欧美videos人牛交_亚洲激情乱码网站_五月婷婷精品视频在线播放_直接在线看黄AV免费观看

     Huangshi Xinyi mineral Co., Ltd was founded in 1993, is a professional production of research and development of mineral materials company, located in Huangshi Huangjinshan Development Zone, Huangshi city, Hubei province. Xinyi company has been established for 20 years, and always insist the corporate purposes which is “Strive for survival on the basis of quality. Strive for development on the basis of innovation.”, and closely cooperate with the universities of Wuhan and Beijing, has developed more than 30 kinds of powder materials, fiber materials and particle materials, widely used in friction materials、abrasives、chemical industry. In 2014, the Trademark of Xinyi was identified as well-known trademarks in