要使用反向丝锥，国内好像没有生产，国外有。
你就将那最末端一段管道全全拆卸下来。
到五金店买一把到两把管钳，自己拆卸，雇请外人的费用更高，自己不练手，永远也不知道，永远受制于人，顶多请个朋友在两头同时拧。
以下都已经验证过。
The next generation keyboard, future keyboard!
It challenged and subverted the global computer keyboard, keyboard music instruments 25 years ago，
The pioneer of the Chinese people (firstly) originally entered this area. who sent it into the modern house of the CEO of Microsoft?
To challenge AT&T of the United States by improving communication deficiencies
Improving communication deficiencies, Chinese people are to challenge AT&T of the United States.