现有的地面礼花都是用纸张卷成筒状发射管,再在发射管的一端用泥巴或者其它材料封口,制成底座,5个回答 The existing ground fireworks launch tube with the paper roll into the tubular end of the launch tube with mud or other materials, sealing, made of base,2013-05-23 12:21:38 回答:匿名 Existing...