... part of gear 3. Carbonitriding quenching or high frequency quenching Product NameSintered Conical Gear for Auto DoorRaw MaterialsMPIF FC-0205, FN- ... ——Sizing——After treatment——Carbonitriding quenching treatment——Oil impregnant——Packing——ShippingManufacturability1. Auto Press: 50T, 100T, 140T2. Hydraulic Press: 100T, 315T, 600T, ... our factory at your convenient time! Sintered Conical Gear for Auto Door