Resin Bonding : Sanding grinding disc uses resin adhesive to ensure that the abrasive is firmly attached to the backing, with good heat resistance, strong wear resistance, and strong adhesion. Hard Paper Backing : Sanding disc uses a hard paper backing, it has high strength to withstand high pressure and high-speed grinding, resistant to breaking or deformation, and has good wear resistance, extending the lifespan of the grinding disc.
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