Where to repair the shuttle bed of the old trapeze sewing machine?

There is an old sewing machine shuttle bed in Ping 'an Community, Shijiazhuang. According to the public information of relevant platforms, there are maintenance workers in the Butou Market in the North District of Shijiazhuang Ping 'an Community. The quality of the old trapeze sewing machines is generally very good, and the main problems are generally needle jumping, floating bottom, threading, broken needle, stagnant cloth, kapok, poor stitch and so on.