... ,65,80,100,125, 150,200,250,300mm5.DN200-630 Hydraulic Forming MachineDiameter: DN200-630mmNo. of layers: single or double layersWall thickness ... liquidForming speed:8-28seconds per convolutionMolds and water injection head: DN200,250, 300,350,400,450,500,550,600mm Hydraulic Metal ...