Compared with metal plunger, ceramic plunger solved the problem of bad corrosion and wear resistance and short working life. Compared with existent ceramic plunger, our anti-pull-off ceramic plunger solved the problem of easier pull off of metal from ceramic. The Plungers are connected with metal handles mechanically, and the viscose glue is filled between them to prevent the screw from getting loose.
They are high corrosion and wear resistance and strong impact resistance and delivers 10 times longer working life than metal plunger. They give a longer life to the sealed packing material.