2.2.1.2. |
|
a3c0 |
2.2.1.2. |
Sample B B2:in the case of A2 one retro-reflector more than 0 per cent but not more than 20 per cent one retro-reflector not more than 20 per cent B3: in the case of A2 one retro-reflector 0 per cent one retro-reflector more than 20 per cent but not more than 30 per cent |
a0c0 |