| 
                 (长×宽) 
               | 
              
                 精度等级  | 
            |||
| 
                 0级  | 
              
                 1级  | 
              
                 2级  | 
              
                 3级  | 
            |
| 
                 平面度公差  | 
            ||||
| 
                 200×200  | 
              
                 5  | 
              
                 10  | 
              
                 20.5  | 
              
                 
  | 
            
| 
                 200×300  | 
              
                 5.5  | 
              
                 11  | 
              
                 22  | 
              
                 
  | 
            
| 
                 300×300  | 
              
                 5.5  | 
              
                 11  | 
              
                 22  | 
              
                 
  | 
            
| 
                 300×400  | 
              
                 6  | 
              
                 12  | 
              
                 24  | 
              
                 
  | 
            
| 
                 400×400  | 
              
                 6.5  | 
              
                 12.5  | 
              
                 25  | 
              
                 
  | 
            
| 
                 400×500  | 
              
                 6.5  | 
              
                 13  | 
              
                 26  | 
              
                 66  | 
            
| 
                 400×600  | 
              
                 7  | 
              
                 14  | 
              
                 27.5  | 
              
                 70  | 
            
| 
                 500×500  | 
              
                 6.8  | 
              
                 14  | 
              
                 28  | 
              
                 68  | 
            
| 
                 500×600  | 
              
                 7  | 
              
                 14.2  | 
              
                 28.5  | 
              
                 71  | 
            
| 
                 500×800  | 
              
                 8  | 
              
                 15.5  | 
              
                 31  | 
              
                 78  | 
            
| 
                 600×800  | 
              
                 8  | 
              
                 16  | 
              
                 32  | 
              
                 80  | 
            
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