... ,thermal insulation,sound insulation,fire resistance,internal pressure,non-load bearing. Glass block is made by glass sand,soda ash,quartz power ... protectal production in reality as well as in name.Glass block is a new building decorative production. Size(mm)Packing (pcs ... .5*161.711200pcs8960pcs145*145*80mmclear1043*30*161.512500pcs10400pcs Lattice glass block