... used to produce profiled pipes within the limit of processing round pipes, such as the square pipes,rectangular pipes, oval pipes,etc.After absorbing advanced ... , low alloy steel, galvanized steel, stainless steel,etc 3. Some popular models and related technical parameters: ModelKJ12KJ25KJ45KJ60KJ76KJ115KJ165KJ219Diameter of welded tubes7-16mm8-30mm13 ...