We have purchased the brazing wire from kyoseki and use in December 2015.
I have checked initial of result with Ms.Nipapan. She told that, the brazing wire of the weld zone didn’t shine. when compare to the brazing wire from NEIS.
She has supposed that, maybe percentage of Ag less than of standard. which their price cheaper than NEIS.
I need your comment. We still purchase them from kyoseki or not?