Plaster of paris _____________?
(A) Is wet calcined hemihydrate
(B) Has porous and irregular crystals
(C) Is a – hamihydrate
(D) Has a W / P of 0.2
Plaster of paris _____________?
(A) Is wet calcined hemihydrate
(B) Has porous and irregular crystals
(C) Is a – hamihydrate
(D) Has a W / P of 0.2
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