Abstract: The present invention relates to a sheet-shaped adhesive and an adhesion method thereof, wherein the sheet-shaped adhesive includes a sheet carrier, a colloid, and isolation films; the sheet carrier has a plurality of non-closed accommodation spaces densely distributed therein; the colloid is coated on the sheet carrier, permeates and fills all the accommodation spaces; and the isolation films seal and wrap the sheet carrier coated with the colloid, so as to solve the problem that the existing adhesive easily causes waste and easily forms air bubbles to cause poor adhesion.

Abstract: This invention relates to a grinding tool, and more particularly, it relates to a diamond grinding disc adapted for grinding. The diamond grinding disc is connected to a grinder via a post to be available for grinding a workpiece. The diamond grinding disc comprises a grinding layer, a transition laver, a back layer, wherein the post is a screw structure upwardly extended from the back layer, wherein the back layer is connected to the transition layer to form integration. The design, setting the back layer and the transition layer as an integrated part and applying soft material on the back layer, solves the problem that the back layer and the transition layer are easily disconnected from each other and prolongs the service life of the grinding disc.

Abstract: A diamond wire saw preventing rotation of beads. A plurality of diamond beads are strung on a steel wire rope, the beads are combined with and fixed to the steel wire rope by injecting a rubber and plastic material, two sides of a substrate pipe of the diamond beads are pressed into a polygonal pipe mouth structure and the pipe mouth is wrapped by the rubber and plastic material, so that the diamond beads cannot rotate easily. In addition, concave lines or convex lines are disposed on inner walls of the diamond beads in the direction of the steel wire rope. The concave lines or the convex lines are embedded into the rubber and plastic material by injecting, the rubber and plastic material, and the holding force and the friction force of the diamond beads are improved.