【化】 重盘式浮阀塔板

valve tray float valve grid valve tray spiral valve tray Linde valve tray ball float valve Nutter float valve float needle valve high side float valve high pressure float valve combined valve and sieve tray ballast ballast(float) valve tray ballast (float) valve tray float valve tray ballast tray float jet tray directional float tray Turbo-float tray gas ballast valve main ballast Kingston (valve)