This aluminum alloy ambulance stretcher uses high-strength aluminum alloy as the main material, and it’s treated with surface hardening. 2. The folding mechanism of this adjustable ambulance stretcher can be controlled by the handles on both sides. Only one medical staff is needed to push the stretcher into the ambulance. 3. The aluminum alloy ambulance stretcher is equipped with aluminum alloy adjustable guardrails and two safety belts for the convenience and safety of patient transport. 4. Mattress (65mm) of our adjustable ambulance stretcher is seamlessly welded with high-density polyethylene coated nylon, and the mattress is waterproof.