What kind of white solder powder can be left after brazing aluminum parts?
Not cleaned before soldering.After welding only with acid cleaning.Shanghai soaking soldering cleaning machine
Generally, the flux left after soldering can be washed out as long as the water is clean. I don't know what soldering flux you use
The washing water used for washing flux should be noticed, but some washing plates are too strong. Oh, please wash the silk screen carefully
