Rhwyll Gwifren Sgwâr
Manyleb |
DIA gwifren. (Mm) |
Agoriadol. (Mm) |
3 rhwyll |
1.6 |
6.87 |
4 rhwyll |
1.2 |
5.15 |
5 rhwyll |
0.95 |
4.13 |
6 rhwyll |
0.8 |
3.43 |
8 rhwyll |
0.7 |
2.43 |
10 rhwyll |
0.6 |
1.94 |
12 rhwyll |
0.55 |
1.56 |
14 rhwyll |
0.41 |
1.4 |
16 rhwyll |
0.35 |
1.24 |
18 rhwyll |
0.3 |
1.11 |
20 rhwyll |
0.27 |
1 |
22 rhwyll |
0.25 |
0.9 |
24 rhwyll |
0.23 |
0.83 |
26 rhwyll |
0.2 |
0.78 |
28 rhwyll |
0.18 |
0.73 |
30 rhwyll |
0.15 |
0.7 |
35 rhwyll |
0.14 |
0.59 |
40 rhwyll |
0.14 |
0.5 |
50 rhwyll |
0.12 |
0.39 |
60 rhwyll |
0.12 |
0.3 |