this thread is 3 years old. using LN racket now but not sure of the string. most likely still using YY string.
well ofcourse xD since China's sponsor is Li-Ning, however it depends on the racket he is using... [China's sponsor is Li-Ning, but FHF & CY are sponsored by Kason, which is also under Li-Ning]
Well you can be sure, that it's basically still the N70 Li-Ning they just paint it in other colors imo
yes they officially do. however Kason is a part of Li-Ning Company and so I'm not quite sure whether he really changed his racket to Kason. But still on official tournaments, Fu & Cai still use their Li-Ning Models [N50-II / N70] since they represent China and their sponsor is Li-Ning. Only on tournaments where they represent themselves they use Kason.