Nws yog txoj hauv kev zoo los txhim kho peb cov khoom lag luam thiab kev pabcuam. Peb lub luag haujlwm yog txhim kho cov khoom muaj tswv yim zoo rau cov neeg siv khoom nrog cov kev paub zoo rau cuprum 2 oxide,Tooj oxide rau muag,Tooj Liab (II) Chloride Dihydrate Acs 98 +%,Tooj liab (II) Carbonate Basy H2O,Azure xiavCov. Peb tau ua haujlwm rau ntau tshaj 10 xyoo. Peb tau mob siab rau cov khoom lag luam zoo thiab cov neeg siv khoom txhawb nqa. Peb thov caw koj tuaj xyuas peb lub tuam txhab rau kev ncig xyuas tus kheej thiab kev ua lag luam ua lag luam siab. Cov khoom yuav muab rau thoob plaws ntiaj teb, xws li pab pawg neeg tshwj xeeb thiab kev sib koom tes los muab cov kev pabcuam tshwj xeeb kom txaus siab rau peb cov neeg yuav khoom. Txais tos koj koom tes nrog peb thiab koom nrog peb. Peb tau koj qhov kev xaiv zoo tshaj plaws.
Tso koj cov lus