There is no attack helicopter UAV in China. Don't know if they have future goal to arm the helicopter UAV.
Sadly, so for there are no attack UAV helicopter, but I think NORINCO, presented it on of the expos, theirs Sharp Eye helicopter, truth to be told, it wasnt attack modification, since, by the look it seemed it has piston engines, instead of much more capable turbine one
China should offer this, as addition to current UAVs intented for export. Possibilities of such product against the insurgency are endless