API Riam Rooj Vag Valve
Rau cov yas khib nyiab thiab cov viscosity siab ntau xws li cov ntawv pulp, qhov tshwj xeeb valve hu ua riam rooj vag valve yog siv los txiav los ntawm cov khoom siv kom tsis txhob ntws. Riamrooj vag valve feem ntau tsis zoo li tus npoo thiab muaj daim kab xev zoo li ntug ntawm nws sab saum toj
Sau koj cov lus ntawm no thiab xa tuaj rau peb