···························看过你说的···············感觉······················那个螺丝是控制气体大小,也就是火焰的大小!你要看看不是不拧过头了,关的太小了! ··················再就是 充气前看看气体失效没有!有的气体有时限的!纯度不够 不好燃烧!················还有 就是充完气 ,然火机 放一会,火机温度太低 也着不了!··········我一般就 充前 摇晃 气体瓶子 口朝下充了 !用手捂一会 !(哥们 火石没问题吧?)