What are the disadvantages of gypsum materials( ).
A、hardtoobtain
B、Easytoabsorbmoisture,materialstrengthwillbereduced
C、Thestrengthofsimilarmaterialsissensitivetogypsumdosage,whichisnoteasytocontrol
D、Unstableperformance
发布时间:2026-01-10 12:28:55