... beds 1 ISO9000 2 use convenient 3 good quality 4 simple operation Supplier evaluation strength (BV ... ,disassembly freely.3.The body is welded with quality carbon steel,anti-corrosive,antibacterial electrostatic powder coating ... ,hard wearing,central-control casters.7.Three professional medical motors, one controller,one handheld operator.8.Back ... °±5°;Adjustment Height:420-740mm good quality medical bed