无码无遮挡精品网站_久久99热精品免费观看欧美_在线欧洲成人免费视频_97超碰caoporen国产一区二区

Energy saving elevator

釹鐵硼永磁材料用于電梯拽引機(jī),替代了渦輪蝸桿結(jié)構(gòu),具有更高的驅(qū)動效率,較小的尺寸,較低的噪音,運(yùn)營成本低。
Home | Contact us | E-mail

Copyright © 2001-2020 Zhongmei magnetoelectric Technology (Shanghai) Co., Ltd All Rights Reserved.

Technical support:website