... toy It can be filled with helium or hydrogen. party balloon,festival balloon,Christmas toy1.Material:Aluminium foil /Nylon/PE2.Size:any ... be self-sealed after being filled.5.Usage:advertising,party,wedding,decoration,promotion and ect.6.Packing:24pcs/pack 100packs/ctn7 ... Hengsheng Industrial Co., Ltd, delicated to flexible packaging and balloon material in 1989, is one of the biggest manufacturers in ...