|
公稱外徑／mm |
公稱壁厚／mm | ||||
|
2 |
2.5 |
3 |
3.5 |
4 | |
|
理論質(zhì)量／(kg／mm) | |||||
|
19 |
0.838 |
1.02 |
|
|
|
|
25 |
1.13 |
1.39 |
1.63 |
|
|
|
32 |
|
1.82 |
2.15 |
2.46 |
|
|
38 |
|
|
2.59 |
2.98 |
3.35 |
|
鑄鐵/DIV> |
|
|
3.11 |
3.58 |
4.04 |
|
57 |
|
|
|
4.62 |
5.23 |