TIDAK | Antara muka sisi | antara muka tengah | ketebalan dinding |
1 | 10 | 12.7/16 | 0.8 |
2 | 12.7 | 16/19 | 0.8 |
3 | 16 | 19/22 | 0.8 |
4 | 19 | 22/25/28 | 0.8 |
5 | 22 | 25/28/35 | 1.0 |
6 | 25 | 28/32 | 1.0 |
7 | 28 | 32/35/42 | 1.2 |
8 | 35 | 42/54 | 1.5 |
3 | 42 | 54/67 | 1.5 |
10 | 54 | 67 / 67 / 76 / 108 | 1.5 |