Tabl dewis paramedr blaengar |
|||
Paramedrau maint yr Wyddgrug |
Mawr |
Canol |
Bach |
Uchder ymylol/MM |
3040 |
20-30 |
10-20 |
Clirio ffit ymyl cneifio/MM |
0.2-0.3 |
0.1-0.2 |
0.05-0.1 |