執筆者 ep | 10月 18, 2020 | Uncategorized
Pump Gear shaft with Helical Gears Substance20CrMnTiTeeth VarietySpur EquipmentWarmth RemedyCarburizing/Cement HardenedArea Hardnessfifty eight-62 HRCEquipment Teeth Milling√Gear Teeth Grinding√Gear CZPT MethodEquipment HobbingEquipment Precision Gradesix-seven Grade...
