diamond grinding wheel-and  CBN grinding wheel---1A1,1F1,14F1,12V9,11A2,12A2,11V9,12V2,4B1,6A2,14E1,

 One Recess Grinding-wheel

>>> One Recess Grinding-wheel mainly adopted for Grinding-wheel to load flange of Big Diameter and thin height. The usage is the same to Plain-wheel. Single-Recess Grinding-wheel mainly for Inner-rotary and plane-grinding, relatively big diameter is used for Outer-Rotary grinding.

 Two Recess Grinding-wheel

>>> Two Recess Grinding-wheels mainly employed in outer-round grinding and blade-grinding, as well as the guide-wheel of centerless grinding.