Main Features：
- A special sponge to the substrate， has a certain elasticity， surface coating layer of ore.
- The product in addition to super abrasive effect， but also is flexible， will not hurt the hand， easy to get and can be wet or dry. 
- In keeping with the traditional function of the water sandpaper， the sandpaper overcome all the shortcomings， make polished products significantly reduced labor intensity.
- Grinding efficiency is improved greatly， it has a long service life.
- Waterproof and acid proof， it can be cleaned， can be repeat use.
- Convenient and effective.