gypsum plaster

基本解释

The invention is useful for producing lightened gypsum plaster boards.
本发明可用于制造减轻的石膏板。
It includes boards designed to receive either direct surface decoration or gypsum plaster.
这还包括直接的表面装饰板或是石膏板。
Setting time of gypsum plaster is very short, usually only 6~30 min, and operation time is only 5-10 min, which cannot satisfy the practical plastering and construction of gypsum-based material.
半水石膏凝结硬化很快，其初终凝时间为6～30分钟，可操作时间只有5～10分钟，往往不能满足石膏基材料的成型与施工的需要。