The pipe making machine in 2004,has passed ISO9001:200 Quality Managing-system Certification Main Parameter1) Diameter of forming tubes: φ ... roll φ60mm,40Cr changing quality treatment,surface high frequence7) Vertical Rollφ35mm,40Cr changing quality treatment,surface high frequence8) Flat steel frame ... partner in the near future!! GH45 straight seam and high frequency welded pipe making machine