HP-2K Stryker style Automatic loading ambulance sizes collapsible stretcher for saleTechnical features: 1)The main material is high strength aluminum alloy which is hardened and surface treated. 2)The height of whole stretcher can be adjusted in more than 4 positions, is convenient for CPR operation. The height of front and back part can be adjusted in more than 12 positions. 3)The guardrail using polymer plastics, the adjustable structure is easy for patient to up and down the stretcher, this stretcher adopts vest type safety belts