... safe.Size:20*1.5cm Packing:4/30/4Liuyang Yihelong Fireworks Mfg. Co., Ltd. is the best and largest manufacturer of ... Influential Top 10 Management Companies in the Global Fireworks Industry in 2009". Yihelong Fireworks consists of two big firework making bases, an ... RoomOur main products are: nearly 2000 toys and cold flame fireworks, a large variety of display shells, large rockets and combined ...