Anterior and Posterior Spinal System 1)TYPE: SINO 6.0 SPINAL SYSTEM , UPASS 5.5 SPINAL SYSTEM, U-FRONT SPINAL SYSTEM,PCF SPINAL SYSTEM 2) Fixed-Angle screw, Multi-Angle screw,Reduction Screw , Rod, Crosslink plate, Hook,Set screw,ect. 3) Material : Titanium Alloy Anterior and Posterior Spinal System