... for the feet of operator to guarantee the operating table keeps stable during all actings.8. The drop-preventing ... , extracorporeal circulation, thyroid, head & neck, gall bladder, urological, rectal, gynecological and spine.Specifications: Mattress size: 2320*510mmBack board size: 1160 ... 90°~ 16°Single Leg board swing angle: 0~ 90°Table X-rays attenuating coefficient: low than 0.43mmALNoising: low ...