Usoro mmepụta dum nke bọọdụ gypsum bụ usoro dị mgbagwoju anya.Enwere ike kewaa usoro isi n'ime nnukwu ebe ndị a: mpaghara gypsum ntụ ntụ calcination, ebe mgbakwunye akọrọ, ebe mgbakwunye mmiri mmiri, ebe a na-agwakọta, ebe a na-emepụta, ebe mma, ihicha bụ ...
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