Bottom-roller graphite carbon sleeve
I normal/high temperature carbon sleeve
Bulk density(g/cbm):¡Ý1.65/ ¡Ý1.70
Compressive strenth(mpa): ¡Ý31/ ¡Ý40
Specific resistance(¦Ì¦¸m):¡Ü8/ ¡Ü8
Ash(%):¡Ü0.5/ ¡Ü0.5
Carbon and impregnated matter(%):¡Ý98/ ¡Ü98
Solar water heaters
All glass vacuum tubes, much less influenced by the wind, weather and temperature changes. Some kinds with CPC mirror reflectors have the widest applications including pool heating, water heating , space heating and process heating.