what is plaster of pairs ? bye aatiya ji aaj mai suicide karne ja raha hu... junnu ko bata dena mere me himmat nhi hai
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Plaster of paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulfate hemihydrate), which hardens when moistened and allowed to dry. Known since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found near Paris. dental model.
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