1artisanal kub tsuas
Siv: Txoj Kev Ua Amalgam Nrog Kub Kom Yooj Yim Rau Kev Tawm Tsam Ntawm Cov Metallic Kub
Faib: Siv dav hauv cov kub me me hauv Ghana, Nigeria, Philippines, Indonesia, South America, thiab lwm yam.
Qhov Teeb Meem: Tus tsis muaj kev ua haujlwm tuaj yeem yooj yim ua kom muaj kuab paug ib puag ncig thiab tib neeg lom
2. Electronics thiab teeb pom kev zoo
Cov roj fluorescent teeb, Ultraviolet teeb txawb, cov mercute hloov, barometers, rectifiers, thiab lwm yam.
Kev loj hlob siab muaj mercury (99.999%) kuj muaj txiaj ntsig zoo nyob rau hauv semiconductor thiab sensor raug
3. Tshuaj Kev Lag Luam thiab Cataly
Siv nyob rau hauv kev tsim cov khoom siv ntawm pvc, chlorine alkali, electrolytic chlorine, acetylene catalytic cov tshuaj tiv thaiv, thiab lwm yam.
4. Kev kho mob thiab sim
Feem ntau siv nyob rau hauv boilometers thiab sphygmomomometers yav dhau los
Tam sim no tsuas yog siv rau kev kuaj sim lossis tshawb fawb