1. low price but high and good service 2.Solid work, Pro/E, AutoCAD CAM 3. high accuracy, good surface ... , drilling, tapping processing, CNC precision machining service2. Material: Carbon steel, Steel alloy, stainless steel, aluminum, brass, bronze, plastic (PVC, POM etc.)3. ... low price but good quality and service.2. Drawing Software: Solid work, Pro/E, AutoCAD CAM cnc machine precision steel shaft