Single crank
2.The bed surface should be strengthened by the 23 x 23 by 1.2mm stainless steel tube3. 4 cm high density full sponge + artificial leather4, the bed can be tilted manually adjust the back and hip function, fold up to 70 ° + 5 ° back; Hip to 30 ° inclined + 5 °.5，The body weight is greater than 150 kg, no deformation.
