... & sizing machine and induction high frequency welding equipmentModel of welded pipe machine:Φ20,Φ32,Φ50,Φ76, Φ89,Φ114,Φ165,Φ ... 508....Actually, the models are not fixed, the production of pipe machine is accordance with customer's requirement.your Wall ... thickness, outer/inter diameter of round pipesside dimensions of square/rectangular pipes ERW welded pipe making machine