Helical Gear: 1.Material:Carbon steel,Alloy steel 2.Products with Customers' Design 3.Strong Machining & Heat Treatment Helical Gear :We are a reliable supplier that can make forging parts and casting parts. Here are some details of the products for your reference. 1. Main products: Custom Open Die Forging, Main Shaft, Wind Power Shaft, Stabilizer, Flange, Coupling, BOP Body, Tube Plate, Roller ...