http://www.niubulls.net/pad-pr....inting-machine/pad-p China Pad Printing Rings suppliers Introduction The pad printing machine is a very convenient and fast printing equipment. In order to protect the environment and the operator, its oil cup is generally sealed. At this time, the Single Blade&Double Bevel Alumina Ceramic Zirconia Ring For Ink Cup Pad Printing Machine needs to be used. It is mainly composed of alumina and zirconia, with hardness up to 90HRA. It has many incomparable advantages over ordinary steel rings, such as high-temperature resistance, wear resistance, acid resistance, oxidation resistance, anti-magne