الوصف

Features：
1.Clean and smooth.
2.High mechanical intensity, hardness, flexibility
3.It can be reused several times, the same effect and is not easily broken.
4.Uniform size, after blasting sand around the device to maintain a uniform brightness effect, not easy to leave a watermark.
5.High purity and good quality meet the international standard.
6.Stable chemistry property, not pollute the metal processed.