... intermittent by PCL controll Traction Bed JHDQ-00A Function This product is designed for cervical vertebra and lumbar vertebra ... 3. Touch key to input data control and traction demand, lumbar, cervical traction can be done simultaneously. Composition and Structure This ... product consists of digital tube display console, the main traction bed, cervical traction frame, swing bed top, etc, JHDQ-00A, ...