Cylindrical Square: Square cylinder for measuring the length of testing rooms and other private sector as a vertical device, face made of precision grinding, grinding wheel which require special materials, precision, never deformation, never rust, easy to custody and so on. If you need other lengths can also be customized. 
 Specifications: Square cylinder diameter 70 × 200 
 Square cylinder diameter of 80 × 300 
 Square cylinder diameter of 80 × 400 
 Square cylinder diameter of 100 × 500 
 Square cylinder diameter of 100 × 600 
 Square cylinder diameter of 100 × 1000 
 Square cylinder diameter of 125 × 800 
 Square cylinder diameter of 125 × 1000 
 Square cylinder diameter of 150 × 1000 

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