... Competetive price Precision steel spur gear Our Advantages:1) Gear precision: ISO Class 4~5 ( Niless gear grinding )2) heat treatment: ... ,Worm,Spiral or other types 5) Use application: gear box for steelworks Product TypeCNC hobbing gearMaterial:42CrMo, 20CrMnMo, 20Cr2Ni4, ... Western UnionPacking: Foam, Carton, Standard Wooden boxesCapacity8,000~1,5000 pcs per monthDelivery 20-30 days after receiving ...