pls contact anya#kosuperhard.com or tel 008613838153474 E-mail: kosuperhard2@yahoo.com or kosuperhard1986@gmail.com TEL: 0086 13838153474 MSN : anya@kosuperhard.com skype :kosuperhard1986 Vitrified bond diamond and CBN grinding wheels show good grinding and polishing and abrasive machining performance in grinding and polishing of natural diamond bruting,tungsten carbide tools grinding applications. Diamond grinding wheels and CBN grinding wheels also used widely in processing : jewel, quartz, glass, ceramics, stone, magnetic materials, semi-conductors, ferrite and other difficult and hard-to-machine complex materials,the vitrified bond diamond wheel also used for Ceramic Porcelain Tiles ( Floor Tiles ),Calcined Alumina ( Alumina Oxide) , Zonium Silicate Opacifier , STPP , etc grinding and polishing applications.