已经有次观看 wencong在2013-08-13发布

Channel：Rare Earth 标签： industrial  MSG,  Rare  Earth 

简介：Rare is called industrial monosodium glutamate, China is the world's largest resources in the country, but because of the lack of advanced metallurgy and materials preparation technology. Therefore, the grade of rare earth has always been on the low-end international level. Breakthrough high-end rare earth rare earth alloy technology to improve product quality. China successfully studied rare earth permanent magnet technology.