
Xaiv Lub Hauv Paus Zoo: Qhia txog Nruam Cam khwb cia vs. Extruded tooj dag pas nrig rau li qub
Kuv. Taw qhia 1.1 Lub plawv ntawm lub valve: Qhov tseem ceeb ntawm MaterialBrass tau ntev yog cov khoom siv nyiam rau lub cev valve thiab cov khoom siv vim yog




