青龙剑是中国唐代的名剑，因为剑身或剑鞘上刻有青龙，而名为青龙剑。中国的武侠小说中经常出现各种刀剑，青龙剑在武侠小说中也应该有出现。通常不同的剑有不同的锻造方法，青龙剑应该也有其独特的锻造工艺，但大部分造剑工艺或程序都是相通或类似的。 Qing Long sword is one of the well known swords in the Tang Dynasty (618-907 CE). The name comes from its special decoration or carving, two Qing Longs (cyan colored Chinese dragons) are carved on both sides of the sword body or the scabbard. Usually, you could meet various swords in the Chinese martial arts novels. Basically, different swords have different types of forging processes. But, most of the processes are similar. Qing Long sword, as a famous sword in Tang Dynasty, should have its own specialties. For more information about the Qing Long sword and Chinese swords please visit http://www.sohu.com/a/142423819_261234 and https://en.wikipedia.org/wiki/Chinese_swords

“青龙剑”means“Tsing Lung sword”.It is a special worad that was maded of wood and iron in Tang Dynasty .I think it refers to the three all.