Mr Fang told the elder brother or sister spike what is produced, how much is the size?Is the train on track with the spike
It's an anti-theft nail. If it is, you can do it yourself. It's also called "no upside down nail",
Bend the steel wire into "[shape]. Then twist the two short edges into space vertically, that is to say
No matter how you put it, there is always a pointed upward, which is anti-theft effect. Size randomI really don't know about that
