5g pcb drilling melamine backup board

{"cid":"91219424","title":"HN60HS Hollow Glass Microspheres for 5G PCBs 10-55\u00b5m 14000 psi","imgUrl":"https:\/\/img.chinax.com\/nimg\/2b\/26\/32e63c4b42c2e2b46d9c57724502-200x200-1.jpg","attrs":{"Brand Name":"HAINUO","Model Number":"HN60","Place of Origin":"SHANXI CHINA","Product name":"HN60HS glass microspheres","Application":"5G Technology","Diameter":"10-55 \u00b5m","Density":"0.15-1.0 g\/cm\u00b3","Compressive Strength":"14000 psi","Chemical Composition":"SiO2, Na2O, CaO, MgO, Al2O3","Color":"White or transparent","True Density":"0.594-0.606","Bulk Density":"0.32-0.36","Dielectric Constant":"1.2-2.2\uff08100MHZ\uff09","Thermal Condictivity":"0.2"}}