1.The cart is shaped by high quality aluminum at one time; 2.Linking track use intensive aluminum alloy,stable and reliable; 3.Two single vehicles can move smoothly up and down,then be adjusted to the same level,stable and reliable; 4.When the bedstead silp to someplace,it will be more stable and reliable; 5.It is function and structure have reached international advanced level; meet OR(operation room)need;prevent cross-infection; 6.High quality Aliminum materials to make the stretcher strong and beautiful. 7.The stretcher can reduce the second injury during the fransfering procedure.. 8.The stretcher has direction ledding function, central control braking system and height adjustment. 9.The connecting procedure is convenient, flexible steadly and reliable.