2)Material:The frame and leg all made of heavy duty metal square pipe with protective. 
3)The top made of High-density stretchy sponge and Artificial Leather.
4)The Back-rest lifting angle is 0-75° by Gas Spring;
5)The height adjustable from 400 to 800mm by electric motor;
6)The Knee-rest lifting angle is 0-45° by Gas Spring;

3-section electric examination table