pob valve

Pob valve yog lub valve uas tau tsav los ntawm lub qia valve thiab tig ib ncig ntawm lub pob valve. Nws kuj tseem siv tau rau kev tswj cov dej thiab kev tswj xyuas. Ntawm lawv, muaj zog shear quab yuam ntawm V-shaped pob core ntawm nyuaj kaw V-shaped pob valve thiab hlau valve lub rooj zaum ntawm surfacing cemented carbide. Nws yog tshwj xeeb tshaj yog haum rau cov xov xwm uas muaj fiber ntau thiab micro khoom hais.