| 
					 specification  | 
				
					 Section line length  | 
				
					 Tooth number  | 
			
| 
					 T2.5×145  | 
				
					 145.00  | 
				
					 58  | 
			
| 
					 T2.5×157.5  | 
				
					 157.50  | 
				
					 63  | 
			
| 
					 T2.5×160  | 
				
					 160.00  | 
				
					 64  | 
			
| 
					 T2.5×172.5  | 
				
					 172.50  | 
				
					 69  | 
			
| 
					 T2.5×177.5  | 
				
					 177.50  | 
				
					 71  | 
			
| 
					 T2.5×185  | 
				
					 185.00  | 
				
					 74  | 
			
| 
					 T2.5×200  | 
				
					 200.00  | 
				
					 80  | 
			
| 
					 T2.5×230  | 
				
					 230.00  | 
				
					 92  | 
			
| 
					 T2.5×245  | 
				
					 245.00  | 
				
					 98  | 
			
| 
					 T2.5×265  | 
				
					 265.00  | 
				
					 106  | 
			
| 
					 T2.5×272.5  | 
				
					 272.50  | 
				
					 109  | 
			
| 
					 T2.5×275  | 
				
					 275.00  | 
				
					 110  | 
			
| 
					 T2.5×280  | 
				
					 280.00  | 
				
					 112  | 
			
| 
					 T2.5×285  | 
				
					 285.00  | 
				
					 114  | 
			
| 
					 T2.5×300  | 
				
					 300.00  | 
				
					 120  | 
			
| 
					 T2.5×305  | 
				
					 305.00  | 
				
					 122  | 
			
| 
					 T2.5×330  | 
				
					 330.00  | 
				
					 132  | 
			
| 
					 T2.5×335  | 
				
					 335.00  | 
				
					 134  | 
			
| 
					 T2.5×355  | 
				
					 355.00  | 
				
					 142  | 
			
| 
					 T2.5×380  | 
				
					 380.00  | 
				
					 152  | 
			
| 
					 T2.5×420  | 
				
					 420.00  | 
				
					 168  | 
			
| 
					 T2.5×450  | 
				
					 450.00  | 
				
					 180  | 
			
| 
					 T2.5×480  | 
				
					 480.00  | 
				
					 192  | 
			
| 
					 T2.5×500  | 
				
					 500.00  | 
				
					 200  | 
			
| 
					 T2.5×512.5  | 
				
					 512.50  | 
				
					 205  | 
			
| 
					 T2.5×580  | 
				
					 580.00  | 
				
					 232  | 
			
| 
					 T2.5×620  | 
				
					 620.00  | 
				
					 248  | 
			
| 
					 T2.5×625  | 
				
					 625.00  | 
				
					 250  | 
			
| 
					 T2.5×690  | 
				
					 690.00  | 
				
					 276  | 
			
| 
					 T2.5×780  | 
				
					 780.00  | 
				
					 312  | 
			
| 
					 T2.5×860  | 
				
					 860.00  | 
				
					 344  |