Yao Haidong: non-ferrous metals mainly to Avoid.

Early chapter Tungsten quickly pulled up, an increase of 7.56%,the trend is not strong in the entire non-ferrous metals in the context of gains prominent.

Scientific planning in Hechi to promote transformation and upgrading of non-ferrous metal industry

Used in the production of sapphire heat welding, this is advantageous in that the heating body more firmly and conductivity better, more advantageous in providing a more uniform thermal field.