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Shanghai King-Nd Magnet Co., Ltd
Cov khoom tsis sib haum xeeb hais txog cobalt (Co), tin (Sn), tantalum (Ta), tungsten (W) thiab kub (Au) los ntawm cov chaw mining hauv tebchaws Democratic Republic of the Congo lossis confli ...Nyeem ntxiv -
High-end hlau nplaum kuaj cov cuab yeej, pab kev ruaj ntseg zoo
Cov khoom lag luam hlau nplaum zoo tau yog peb lub sijhawm mus ntev nrhiav kev txhim kho tseem ceeb, tab sis kuj los xyuas kom meej tias peb cov lag luam nyob rau xyoo tas los no kom muaj kev txhawb nqa g ...Nyeem ntxiv