A.3~5mm的水泥砂漿 B.5~10mm的水泥砂漿 C.3~5mm的水泥凈漿 D.5~10mm的水泥凈漿
A.20mm,15mm B.30mm,20mm C.30mm,25mm D.25mm,20mm
A.0.1% B.0.2% C.0.3% D.0.4%