Honeycomb composite panel

(1).5mm granite laminated with 8mm aluminium honeycomb backer, total 13mm thick Or 4mm marble laminated with 8mm aluminium honeycomb backer, total 12mm thick. (2). Light weight: Granite honeycomb thin panel: 5.74 pounds/sq.ft (28kg/sq.m), while 12.30 pounds/sq.ft of 2cm granite slab (60kg/sq.m). It is only 1/2 weight of 2cm granite slab. Marble honeycomb thin panel: 5.33 pounds/sq.ft(26kg/sq.m), while 11.30 pounds/sq.ft of 2cm marble slab (55kg/sq.m). It is only 1/2 weight of 2cm marble slab. (3). Advantage of honeycomb thin stone panel as follows, A. High impact resistance,panels resisted 540 ft. lbs. impact (maximum limit of the laboratory equipment). Unofficial tests exceeded 3,600 ft. lbs. capacity, compared to 60 ft. lbs. for 1" thick granite. B. Fire resistance. C. Strong flexural strength, is about 3~5 times as the normal stones