日韩欧美一区二区不卡看片,综合激情五月婷婷久久,污污污网站国产精品一区,国产91对在线播放白丝,国产天堂传媒性色av,嫩草国产露脸精品国产,久久亚洲午夜精品毛片,激情欧美成人久久综合,日韩情色一区二区三区,久久婷婷激情综合色综合俺也去

        1. <rt id="ddpzz"><small id="ddpzz"></small></rt>
            <li id="ddpzz"></li>

            support hotline:18847276969 18686128800
            ABOUT
            current location:home > ABOUT > cultureculture

            In 1993, Baotou Science and Technology New Technology Development and Application Research Institute was established, dedicated to the development and research of NdFeB application technology, and the production and sales of rare earth metals (釹);
            In 1997, the company successfully developed the “Method for the manufacture of barium fluoride from NdFeB waste”; it was the first in the industry to overcome the problem of re-use of NdFeB waste head;
            In 2001, in cooperation with Rhodia Rare Earth Company (France), the first research and development in the industry to produce niobium alloys and niobium alloys, and promoted the application in NdFeB manufacturing.
            In 2002, Baotou Science and Technology New Technology Application Development Research Institute was renamed Baotou Branch Poly-Rare Earth Co., Ltd., which further enhanced the company's popularity, focusing on the R&D, production and sales of niobium alloys, niobium alloys and niobium alloys;
            In 2008, following the national rare earth industrial policy, the company entered the rare earth industrial application park of the national rare earth high-tech zone, and established Baotou Shengyou Rare Earth Co., Ltd., and the “Rare Earth Alloy Project for Annual Production of 1000 tons of High Performance Rare Earth Permanent Magnet Materials” officially landed. The total investment of the project is 50.95 million yuan. Approved 13600 square meters of land, building factory buildings, warehouses, R&D centers and supporting facilities;

            In 2012, the “Rare Earth Alloy Project for Annual Production of 1000 tons of High Performance Rare Earth Permanent Magnet Materials” was completed and officially put into operation;

            In 2017, based on the existing technical capabilities, the transformation and upgrading of high-purity rare earth alloys for electric vehicles.





            91丨九色丨熟女高潮| 男女18禁啪啪无遮挡激烈网站| 色哟哟精品丝袜一区二区| 欧美亚洲另类国产精品色| 高潮少妇高潮少妇av| 丝袜诱惑在线一区二区| 亚洲一二三区精品美妇| 日本熟日本熟妇中文在线观看| 国产成人午夜精品一区| 女优av福利在线观看| 欧美日韩一级片免费看| 在线一区二区中文字幕| 在线播放免费人成视频在线观看| 成人AV专区精品无码国产| 97视频在线观看播放| 丰满的少妇被猛烈的进入| 久久亚洲中文字幕丝袜长腿| 蜜桃在线一区二区三区| 亚洲成av人片极品少妇| 国产午夜福利久久精品| 少妇av一区二区三区| 99RE6在线视频精品免费| 手机在线观看av不卡网站| 日本欧美国产在线观看| 日韩精品久久精品三级| 极品少妇人av免费久久| 丁香五月婷婷老师| 国产精品性色也91久久| 黄色av链接在线观看| 亚洲AV无码乱码国产精视孕妇| 久久久精品人妻一区二| 丝袜诱惑国产一区在线| 99久久久精品国产性黑人| 亚洲欧美自拍中文自拍| 亚洲av成人区国产精品| 一区二区三区不卡精品| av日韩毛片免费观看| 丰满人妻精品中文字幕久久| 丰满人妻洗澡少妇久久| 精品人妻一区二区久久| 国产精品一区二区久久国产|