During the soldering of the bell and the body, because the brass includes zinc or tin, oxidization will produce bubbles. So it is necessary to beat the soldered seams with a metal hammer to increase their density, and then they must be buffed flat. Only when there are no visible marks of the soldering process can the sax be considered up to snuff.
而不論是吹頭或是管身的焊接，因為銅材料含有鋅或錫成份，焊接時會因氧化產生氣泡，必需以鐵鎚將焊接線打密再磨平，幾乎看不出焊接的痕跡才算過關。