... big capacity. plunger,auto parts,fuel pump plungerThe anti-pull-off ceramic plunger is another high-tech patent product of ... ceramic plunger, Orient Zirconic's anti-pull-off ceramic plunger solved the problem of easier pull off of metal from ceramic. Features: ... . The superior comparing with existent ceramic plunger are anti-pull-off, connecting reliable, strong strength 10 times longer working life ...