can i bring E-cigarette and e-liquid from china?

Hello,
My father is travelling with F category visa, can he bring 50 pieces of e-cigarette (e-cigarette contain ego battery) and 108 piece of liquid (20ml =48 pieces and 5ml=60 pieces total weight of liquid is about 1.25kg). total weight is about 7.5 kg, will there be any problem in security check in Kunming Airport.
Thank you for your help.