A.55% B.65% C.75% D.85%
A.模型石膏 B.高強(qiáng)石膏 C.建筑石膏 D.無水石膏水泥
A.刮涂→收料→對(duì)花→補(bǔ)花 B.收料→刮涂→對(duì)花→補(bǔ)花 C.刮涂→收料→補(bǔ)花→對(duì)花 D.刮涂→對(duì)花→收料→補(bǔ)花