Peb cov neeg ua haujlwm ib txwm nyob hauv lub siab "kev txhim kho txuas ntxiv", thiab ua ke nrog cov neeg siv khoom zoo nkauj rau inorganic ntsev carbonate nqe,Cuvic carbonate theem pib 3000kgs,Tooj liab oxide cov khoom,Khoom tooj liab oxide,Cu2o HmoovCov. Txhawm rau nthuav peb cov lag luam thoob ntiaj teb, peb tsuas yog muab peb cov neeg siv khoom txawv txawv ntawm cov khoom lag luam zoo tshaj plaws thiab kev pabcuam. Cov khoom yuav muab rau thoob plaws lub ntiaj teb, xws li cov neeg muaj zog, raws li cov khoom lag luam uas tsim nyog thiab txhawb nqa cov neeg siv khoom lag luam
Tso koj cov lus