Cotton Swab,Beauty Egg,Sanitary Wipes,Face Towel NINGBO KADOY IMPORT & EXPORT CO., LTD , https://www.nbkadoy.comDouble clogged double discharge ball valve works: Double clogged double discharge ball valve seat supported by a two floating ball in the media under the pressure of the ball itself will have a certain displacement, resulting in pressure to the seat ring seal outlet, Produce a sealing effect.
Double plug double discharge ball valve