edm tubes (0.3mm/0.8mm/0.7mm/1.0mm/0.6mm/0.5mm)

1.Provide single channel &multichannel type brass and copper tubes to cope with different use.
2.High accuracy ,the smoothness of the hole surface can be maintained.
3.The tube body is absolutely straight,ensuring that the process is keeping accurancy when it is under electric dischanging.