The NCO% of each stage meets the specification, and the viscosity specification also meets (but is low), and the yellowing resistance level is not measured.
Each stage NCO% conforms to the specification, the viscosity specification is also in line with (but low), the yellow-resistant series is not measured.
The NCO% of each stage was in accordance with the specification, the viscosity specification was also in accordance with (but on the low side), and the yellowing resistance level was not measured.<br>