aviation field 2000 psi glass micro spheres

{"cid":"91219424","title":"HN25 Glass Microspheres 750 psi for Aviation Materials","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/ca\/a590f400173b56359361596e709f-200x200-1.jpg","attrs":{"Brand Name":"HAINOU","Model Number":"HN25","Place of Origin":"SHANXI CHINA","Product name":"HN25 glass microspheres","Application":"Aviation Materials","Diameter":"25-90 \u00b5m","Density":"0.15-1.0 g\/cm\u00b3","Compressive Strength":"750 psi","Chemical Composition":"SiO2, Na2O, CaO, MgO, Al2O3","Color":"White or transparent","True Density":"0.23-0.27","Bulk Density":"0.12-0.15","Dielectric Constant":"1.2-2.2\uff08100MHZ\uff09","Thermal Condictivity":"0.085"}}