HP-2F Emergency Ambulance Chair Stretcher Medical Bed sizes For HospitalTechnical features: 1)Hospital ambulance chair stretcher is high strength aluminum alloy which is hardened and surface treated. 2)The folding mechanism of the leg part can be controlled by the handles on both sides. Only one medical staff is needed to pushthe stretcher into the ambulance car. 3)Hospital ambulance chair stretcher is equipped with aluminum alloy adjustable guardrails and two safety belts for theconvenience and safety of patient