hand strap
... hand stop valve手动截止阀 hand strap扶手带 hand sugar refractometer手提式检糖折射计 ...
handrail
... 扶手装置(balustrades) 扶手带(handrail) 扶手带入口保护装置(handrail entry guard) ...
control guard for handrail breakage ; control device for handrail brekage
inlet of handrail
inlet switch