A.樓梯平面圖 B.樓梯平臺詳圖 C.樓梯節(jié)點(diǎn)詳圖 D.樓梯剖面圖
A.10% B.12% C.13% D.15%
A.12~28mm B.12~20mm C.10~25mm D.10~20mm