... ,fragile,wind crackNon-alkali resistant and non-acid resistantAging,fragile,wind crackAlkali resistant and acid resistantEnvironment friendlyThin,sound insulation ... easy to get fragileTenacity is good but shock resistant is poorFragile,easy to get brokenGood,tenacity is ... to get blowedThin,easy to get blowedTyphoon resistantTyphoon resistant and snowstorm resistantsizeThe size of our product is ...