Surley yog ib phau ntawmpretreatment thiab electrophoresis txheej txheem Txau lub rooj qhov cub conveying system da dej kuaj lub rooj zaum kev tiv thaiv ib puag ncig technology Khoom siv chaw ua haujlwmstyle tag nrho hauv ib lub khw.
Qhov Rooj Sib Tham Kab
