31411236gypsum plasterPT2026-03-30 20:50:34UF31411237plaster, gypsumNDBT31374220plaster by composition or originPTNT31438022gauging plasterPTNT31438024plaster of ParisPTNT31438027retarded hemihydrate plasterPTNT31438033anhydrous gypsum plasterPTNT31411281stuccoPT