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	| 
 標(biāo)準(zhǔn)外徑  | 
 外徑(毫米)  | 
 內(nèi)徑(毫米)  | 
 重量(公斤/米)  | ||||
| 
 (毫米)  | 
 (寸)  | 
 厚  | 
 薄  | 
 厚  | 
 薄  | 
 厚  | 
 薄  | 
| 
 13  | 
 1/2  | 
 21.32  | 
 12.5  | 
 15.80  | 
 9.30  | 
 1.305  | 
 0.509  | 
| 
 15  | 
 5/8  | 
 | 
 15.87  | 
 | 
 13.47  | 
 | 
 0.436  | 
| 
 20  | 
 3/4  | 
 26.67  | 
 19.05  | 
 20.93  | 
 15.87  | 
 1.686  | 
 0.691  | 
| 
 25  | 
 1  | 
 33.40  | 
 25.40  | 
 26.64  | 
 22.22  | 
 2.437  | 
 0.939  | 
| 
 30  | 
 11/4  | 
 42.16  | 
 31.75  | 
 35.05  | 
 28.57  | 
 3.543  | 
 1.192  | 
| 
 40  | 
 11/2  | 
 48.26  | 
 38.10  | 
 40.89  | 
 34.92  | 
 4.195  | 
 1.44  | 
| 
 50  | 
 2  | 
 60.32  | 
 50.80  | 
 52.50  | 
 47.62  | 
 5.648  | 
 1.941  | 
| 
 65  | 
 21/2  | 
 73.02  | 
 64.50  | 
 62.71  | 
 60.32  | 
 8.929  | 
 2.466  | 
| 
 75  | 
 3  | 
 88.90  | 
 76.20  | 
 77.93  | 
 73.02  | 
 11.703  | 
 2.948  | 
									
  | ||

