A尺寸:35''W x 18''D x 30''H (1件活动层板)
B尺寸:35''W x 18''D x 35''H (1件活动层板)
C尺寸:35''W x 18''D x 40''H (1件活动层板)
D尺寸:35''W x 18''D x 52''H (2件活动层板)