1.Soft bond: made by soft materials, for hard concrete grinding, the sharpness is better.
2.Hard bond: made by hard materials, for fresh or soft concretegrinding, the lifespan is longer.
3.Middle Bond: it's for the medium concrete grinding, moh's hardness from 4-6.
4.Diamond grinding polishing pads can smooth and level high spots
5.Hard polishing pads are made with high quality diamonds for most concrete floor.
6.When grinding hard concrete ,diamond segment bond needs to match the concrete hardness, for example, black for hard concrete, red for medium concrete and golden for soft floor.
7.Diamond Grinding segnent is suitable for concrete and terrazzo floor
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