1.The structures of diamond grinding wheel consist of three parts which conclude the work level, the substrate and the transitional layer generally.

2.The transitional layer is also called as the non-diamond, which is made of the cement, the metal powder and the padding, connects reliably the diamond riddlings in the substrate.

3.And at last, the substrate is by the aluminum, the steel or the bakelite, which plays the role of supporting the work level and installs the card grinding.