bulk density 0 15 0 3 g cm glass microballoons

{"cid":"91219424","title":"Glass Microballoons Hollow Glass Spheres with Temperature Resistance Up To 600\u00b0C Chemical Resistance and Spherical Shape","imgUrl":"https:\/\/img.chinax.com\/nimg\/f1\/79\/eff5697a725e4b300460684de44b-200x200-1.jpg","attrs":{"Thermal Condictivity":"0.2","Diameter":"20-75 \u00b5m","Material":"Glass","Chemical Resistance":"Good Resistance To Most Chemicals","Chemical Composition":"SiO2, Na2O, CaO, MgO, Al2O3","Thermal Conductivity":"0.05 W\/m\u00b7K","Temperature Resistance":"Up To 600\u00b0C","Shape":"Spherical"}}