1、High-frequency Welded Machine Our company has high-precision deburring Ф25、Ф28、Ф32、Ф50 and other high-frequency longitudinal welded pipe production lines, which can produce outer diameters Ф8 ~ Ф70mm, wall thicknesses 0.4 ~ 3.0mm round pipe and various specifications of square rectangular pipe or shaped pipe, as well as customized according to the needs of clients.