自行车打气筒电动迷你便携式自行车打气筒带数位PSI 压力表摩托车山地车公路自行车轮胎充气机

使用前请注意内管内是否已存有气体
1.空心内胎充气：先将打气筒连接到内管阀门上，然后启动打气筒对内胎充气。

 2.内胎已含空气的补充：先启动打气筒，打开充气模式，最后将打气筒连接到内胎阀门上进行充气。 

Note:

Before use, please note if there is already gas in the inner tube
1.Inflating a hollow inner tube: first connect the pump to the inner tube valve and then start the pump to inflate the inner tube.

2.Replenishment of an inner tube that already contains air: start the pump first, switch on the inflation mode and finally connect the pump to the inner tube valve to inflate it.