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鋼管尺寸(mm) |
管壁厚度(mm) |
保溫層(mm) |
¢45 |
2.0 |
29 |
¢57 |
2.0 |
29 |
¢76 |
2.2 |
30 |
¢89 |
2.2 |
30 |
¢108 |
2.4 |
30 |
¢133 |
2.4 |
30 |
¢159 |
2.5 |
40 |
¢219 |
2.5 |
40 |
¢273 |
3.0 |
40 |
¢325 |
3.0 |
40 |
¢377 |
3.5 |
40 |
¢426 |
4 |
50 |