
These LRIP batch J-35s need to lift their detail work to J-20's level. Look at the alignment of these radome discharge strips and where the canopy meets the perimeter. The other bits are from stealth tape to seal off the fuel probe compartment.
Overall the finish is pretty superb. Just not J-20 or F-35 level.
Compare to J-20.

Everywhere else it's meeting the standard, especially fuselage sections and gaps but the J-20's canopy looks better made. Even the discharge strips on a J-10 radome is perfectly made. Same goes for J-16 and J-15 series so it's not a SAC manufacturing issue. Might just be effect of new production lines getting into the groove.