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use of water as a permanent element of non flammable articles obtained by a composite material containing from 50 to 98 by weight of water in a state of gel. the substances in the remaining part, and the water itself will determine the pre
use of water as a permanent element of non flammable articles obtained by a composite material containing from 50 to 98 by weight of water in a state of gel. the substances in the remaining part, and the water itself will determine the pre
