Function: 1) Road reflecting mark 2) Used as disperser, grinding media filler materials in dye, paint,coatings, chemical etc Road marking glass beads1.The specific gravity:2.4-2.6(g/cm3); 2.Refractive index: not less than 1.53.Standard:JT/T446-2001;BS6088-1981; AASHTO M247;AS/NZS2009:2002 ; EN 1423:1997 and etc. can produce as client's requirements.BS6088 CLASS A(PREMIX)Diameter(um)Retained(%)> ...