HP-2B Hot Sale Economic Ambulance Stretcher Sizes Ferno Stretcher Used for Ambulance Car1. The main material is high strength aluminum alloy which is hardened and surface treated. 2. The folding mechanism of the leg partcan be controlled by the handles on both sides. Only one medical staff is needed to push the stretcher into the ambulance car. 3. Equipped with aluminum alloy adjustable guardrails and two safety belts. 4. The mattress is seamless welded with sealed high density polyethylene coated nylon material, it's waterproof ,