1、Primary Material: aluminum alloy of Special Quality  
  2、Driving: single-gear steps driving system  
  3、Specification of external frame: 90mm (width) * 90mm (thic-kness).
  4、Width of triangle prism:60mm, thickness 1.2mm  
  5、Weight: 12kg/square meter  
  6、Image combination: triangular prism 2.5m without joint and
       length within 5m  
  7、image flipping time: 5 seconds (preset ex work)  
  8、Image stop time: 5 seconds(preset exworks)  
  9、Power supply: voltage 220v, current 0.54A, fre quency 50
        HZ, power 15W  
  10、15W original Panasonic motor  
  11、Operation service life: qualified installation will ensure nor-
         mal service life up to 10 years based on 12 hours each day  
  12、Flipping performance (only one type can be set ex works
         based on customers' requirement)  
         A. Simultaneous             B. Wave type     C. Curtain opening type
         D. Curtain closing type    E. Flipping step by step.    F. Flipping from part to part.   
  * We reserve the right to change the specification and design any-
   time without informing in advance.