铸铁弯板参数:
| 
             规格 mm  | 
            
             测量面对基面的垂直  | 
            
             测量面平面度或直线度  | 
            
             基准平面度或直线度  | 
        ||||||
| 
             精度等级um  | 
        |||||||||
| 
             1  | 
            
             2  | 
            
             3  | 
            
             1  | 
            
             2  | 
            
             3  | 
            
             1  | 
            
             2  | 
            
             3  | 
        |
| 
             200×200  | 
            
             8  | 
            
             16  | 
            
             30  | 
            
             4  | 
            
             8  | 
            
             16  | 
            
             6  | 
            
             12  | 
            
             24  | 
        
| 
             300×200  | 
            
             10  | 
            
             20  | 
            
             40  | 
            
             5  | 
            
             10  | 
            
             20  | 
            
             8  | 
            
             16  | 
            
             30  | 
        
| 
             300×300  | 
            
             10  | 
            
             20  | 
            
             40  | 
            
             5  | 
            
             10  | 
            
             20  | 
            
             8  | 
            
             16  | 
            
             30  | 
        
| 
             400×300  | 
            
             12  | 
            
             24  | 
            
             45  | 
            
             6  | 
            
             12  | 
            
             24  | 
            
             10  | 
            
             20  | 
            
             40  | 
        
| 
             400×400  | 
            
             12  | 
            
             24  | 
            
             45  | 
            
             6  | 
            
             12  | 
            
             24  | 
            
             10  | 
            
             20  | 
            
             40  | 
        
| 
             500×400  | 
            
             14  | 
            
             28  | 
            
             50  | 
            
             7  | 
            
             14  | 
            
             28  | 
            
             12  | 
            
             24  | 
            
             48  | 
        
| 
             500×500  | 
            
             14  | 
            
             28  | 
            
             50  | 
            
             7  | 
            
             14  | 
            
             28  | 
            
             12  | 
            
             24  | 
            
             48  | 
        
| 
             800×600  | 
            
             18  | 
            
             35  | 
            
             60  | 
            
             9  | 
            
             18  | 
            
             35  | 
            
             14  | 
            
             28  | 
            
             55  |