... bond surface of the pipe fringe,welding it into tube blank quickly.After cooling,sizing and broad straightening,the ... → pack → mark → warehousing Main technical parameters: Diameter of tube(mm) Φ20Φ32Φ50Φ60Φ76Φ89Φ114Range of processing ... flying saw,straightener,end milling equipment,hydrostatic testing machine,charge table,sack&bale machine,high frequency DC drag,product line electric applicance. If ...