Source? JF-17 block 3 made its first flight in Jan 2020. Thats all. Where did you get the detection range for its radar from? Also, where did you get PL-15's range from?
It's an export radar, stuff about it is open source. The Americans have given clues about the PL-15's range.
So? How do you know those engineers are not lying through their teeth?
'Cause they need to sell.
Wrong! Mk1A's radar has lesser detection and tracking range compared to bars.
Then we have the sh!ttiest AESA radar in the world.
Will they tell you if they have an agreement?
Yes.
Like this:

China's Cutting-Edge Attack Helicopter Is Actually A Russian Design
Youtube A recent post on Aviation Week revealed that China's cutting edge Z-10 helicopter is actually Russian. That's right, China's premier attack helicopter,

They naturally do not want the Chinese to take away their export market.