横档 [建] ledge ; FILLING BAR

门锁横档 lock rail

波浪式护栏横档 corrugated barrier fence rail

三角横档 [建] arris rail

支横档 [建] waling

中横档 [木] Middle Rail ; parting rail

横杆推档 cross-checking

顶横档 top rail

无横档链 unstudded cable ; studless cable