The treatment method is: some metal connectors have loose phenomenon, just re reinforcement can be.

处理的方法是：部分金属连接件有松动现象，只需重新加固即可。

youdao

The treatment method is: some metal connectors have loose phenomenon, just re reinforcement can be.

处理的方法是：部分金属连接件有松动现象，只需重新加固即可。

youdao