We also do the ending, not surprisingly, and use 3 hardening procedures with the slide and barrel. The final hardening makes the patented 70 Rockwell Cone end that is definitely harder than the usual file."总结：有小朋友又想让他们在家里运动的，可以考虑。网络不好并且不想被网友虐的，直接跳过。While firearm l