石材湿贴灌注砂浆宜用1:2.5水泥砂浆,灌注时应分层进行,每层灌注高度
16 查阅
A.50~100mm
B.150~200mm
C.250~300mm
D.350~400mm
参考答案:
A.50~100mm
B.150~200mm
C.250~300mm
D.350~400mm
参考答案: