koob txhaj tshuaj kho tsiaj
1. Kev Qhia Tshwj Xeeb: 2ml, 5ml.
2. Khoom siv: Tooj dag nrog electroplating, cov khoom siv rau kov: Yas
3. Qhov tseeb yog:
2ml: 0.1-2ml txuas ntxiv thiab kho tau
5ml: 0.2-5ml txuas ntxiv thiab kho tau
