60# 80# 120# blasting sand glass beads with 72% SiO2
60# 80# 120# blasting sand glass beads with 72% SiO2 1 Description Glass bead is made of high quality material production and become, has certain mechanical strength, have enough flexibility, can be used multiple times is not easy and broken, the spray device, obvious effect, not hurting objects’ surface, long service life than ordinary glass bead