Binder refers to the Bonded Abrasives various types of binder and abrasive bonded materials. Bonded Abrasives usually ceramic, resin, rubber, magnesite four categories binder. These four types of binder to the largest proportion of vitrified bond. Clay, feldspar, loess, velcro disc,quartz stone composed of different abrasives for different purposes and different system of law (pouring or suppress) vitrified ceramic binder material. The resin binder is a phenolic type of resin, two broad categories of powder resins and liquid resin, is based on a different manufacturing method and by different purposes for various resin binder. The rubber binder artificial SBR Buna rubber and liquid rubber three categories, according to the different system of law and the use of different and divided into various rubber binder. Magnesite binder material consisting of magnesium oxide and magnesium chloride material, mainly used for fine-grained abrasive for fine processing purposes. The the various binders of Code as follows: the binder name combined with the agent codenamed ceramic binders V resin binder rubber binder B R magnesite binders MG.Bonded abrasives