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.





            在线日韩AV永久免费观看| 国产精品日本一区二区| 又色又爽又黄又无遮挡的网站| 激情五月激情月婷婷六月| av免费网站在线免费观看| 在线免费成人亚洲av| 免费在线观看欧美激情一区| 亚洲最新中文字幕一区| av毛片简单免费在线| 亚洲AV片不卡无码久久嫩模| 久久精品久久精品亚洲人| 美女视频黄久久久精品合集| 狼人av免费在线观看| 国产亚洲福利社区一区| 十八禁在线观看一区二区| 日日爱网站| 欧洲精品亚洲精品国产第三| 日韩最新视频一区二区三| 中文字幕亚洲亚洲精品| 国产乱对白刺激视频| 亚洲JIZZJIZZ在线播放| 内谢丰满少妇av在线| 岛国大片高清在线播放| 欧美一二三区不卡视频频| 婷婷内射| 久久国产亚洲中文字幕| 日韩最新av一区二区| 国产人妻久久精品二区| 日韩一区二区三区黄片| 杨幂久久免费区一区二区| 免费午夜一区二区三区| 久久成人深夜福利视频| 欧美一区二区三区桃花| 日韩在线中文字幕一区二区三区 | 中文字幕乱码中文乱码毛片| 老熟妇高潮av一区二区三区啪啪| 国产激情视频免费观看| 久久精品亚洲熟女九色| 日韩亚洲中文有码视频| 一区二区三区四区不卡乱码av | 国产精品亚洲二区在线播放|