... Nylon; POM; Acrylic; Derlin. Machining: Machining center, CNC, conventional machines, all current processing methods Surface treatments: Shot ... coating, painting, polishing and passivated. Main equipment: CNC lathe, automatic lathe, hand lathe grinder, thread rolling ... yield stress, elongation, impact testing, pressure testing, 3D coordinate CMC, metallographic, magnetic particle flaw inspection. ...