... .6 mm, nitriding hardness acuity >=7001.2 Screw barrelScrew tube diameter, 50mmScrew tube material, 38CrMoALAProcessing, nitriding processNitriding depth >0.6 mm, nitriding ... , vacuum sizingElectric power, 1.5 KWThe vacuum tube diameter and ball screw rotationThe vacuum tube diameter and drive power, 0.37 KWMatching ...