1. Material: Stanly PA46,PA66, 40Cr, 45#; 2. TS 16949; 3. Process: ... -400mm, Quality can reach GB 5 with low noise.Material: 40Cr, 45#, 42CrMo,16MnCr5, PA46 etc.or according to the customer's ... , High or medium frequencymanufacture machine:inspection instrument: PA66 or PA46 material worm gear and worm shaft