According to my understanding, the early version (maybe prototype, I'm not sure) has refueling probe, but the operational version has none. and the two seater version never have one. However, since it's a CG pix, they can draw whatever they want.
国产歼-10战机有“空中猎鹰”之称 摄影:陈诚
我国自行研制的轰油-6空中加油机 摄影:陈诚
国产歼-8D战机有“拳头战机”美称 摄影:陈诚
国产“全能王”直-8直升机“空中骑士”直-9直升机 摄影:陈诚
Likely Zhuhai airshow 2008