... durable Capacity 10,000 pcs per month Competetive price Precision steel spur gear Our Advantages:1) Gear precision: ISO Class 4 ... : Spur,Helical,Worm,Spiral or other types 5) Use application: gear box for steelworks Product TypeCNC hobbing gearMaterial:42CrMo, 20CrMnMo, 20Cr2Ni4, 35CrMo ... services:CNC Machining, Milling, Stamping, Sheet metal fabricating, and Die-Casting