standard height for chair rail

{"title":"Multifunctional Electric Height Adjustable Bed Hospital ICU Bed With IV Pole","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/13\/20\/7d4f7e163a6b49142248e0942477-200x200-1.jpg","attrs":{"Price":"To be negotiable","Brand Name":"HaoKang","Model Number":"HK-D-002C","Minimum Order Quantity":"50 Piece\/ order","Delivery Time":"20 working days","Certification":"CE,FDA,ISO9001","Place of Origin":"Guangzhou ,China","Payment Terms":"T\/T L\/C, Western Union","Supply Ability":"2000 Piece\/Pieces per Month ICU multi-function electric hospital bed","Packaging Details":"Standard strong carton or plywood packing","Product Name:":"CE certified hospital intensive care electric ICU bed","Application":"hospital intensive care bed","Material":"Epoxy coated steel and PP plastic","IV pole holes":"4","Drainage hooks":"4"}}